Airbus 52 A300 A310 Doors

ATA 52 Doors

MTT M540000/R3.4 16AUG01 For Training Purposes Only

52-1 521

ATA 52 A300/A310

A300/A310 Courier (Passenger/PAX) (Passenger/PAX) / Crew and Cargo Compartment Doors - General General

Passenger/Crew Doors Two passenger/crew doors, one on each side, are provided for crew. The doors open outwards and can be operated from inside and outside. Each passenger/crew door is equipped with an emergency escape slide.

Access to the various compartments of the aircraft can be gained through the appropriate doors. According to their special function the doors are used as entrance and exit for persons or for loading and unloading cargo and baggage; other doors are exclusively used for maintenance purposes.

Cargo Compartment Doors Each of the three lower cargo compartments is accessible through a cargo door for loading and unloading cargo and baggage. FWD and AFT cargo compartment doors are opened outwards; bulk cargo compartment door is swung inwards. FWD and AFT cargo compartment doors can be operated from outside only. Bulk cargo compartment door can be operated from outside and inside. In the MAIN Deck cargo compartment is accessible through the MAIN Deck Cargo (MDC) door. It can be operated from inside and outside to open outwards.

Before any door in the pressurized area is to be opened from outside or inside, observe the following instructions: WARNING:: IF THE AIRCRAFT IS SUPPLIED WITH CONDITIONED WARNING AIR, MAKE SURE THAT THE FOLLOWING CONDITIONS ARE MET BEFORE YOU OPEN THE DOOR: AT LEA LEAST ST ONE FLT COM COMPAR PARTME TMENT NT WIN WINDOW DOW OR PASSENGER COMPARTMENT DOOR IS OPEN AND REMAINS OPEN DURING SERVICING. IF THE AIRC AIRCRAF RAFT T IS IS PARK PARKED ED OUT OUTSID SIDE E AND AND IS NOT PROTECTED FROM THE RAIN, ONE MAINTENANCE DOOR SUCH AS 134AR, 136AR, OR AVIONICS ACCESS DOOR 121BL IS OPEN AND REMAINS OPEN DURING SERVICING. WARNING:: RESIDUAL PRESSURE COULD CAUSE THE DOOR TO WARNING OPEN WITH A SUDDEN FORCE AND INJURE PERSONS AND/OR DAMAGE THE AIRCRAFT.


52-2 522

ATA 52 A300/A310

A300/A310 Courier (Passenger/PAX) / Crew and Cargo Compartment Doors Identification Location


52-3 523

ATA 52 A300/A310

A310 Courier (Passenger/PAX)/Crew and Cargo Compartment Doors - General General

Cargo Compartment Doors Each of the three Cargo Compartments is accessible through a Cargo Door for loading and unloading cargo and other types of shipment cargo. The FWD and AFT Cargo Compartment Doors are opened outwards.

Two Courier Passenger/Crew Doors (L1/R1), one on each side, are provided for Courier / Passengers and Crew. The doors open outwards. They can be operated from inside and outside. Each Courier Passenger/Crew Door is equipped with an Emergency Escape Slide.

The BULK Cargo Compartment Door opens inward into the Bulk Cargo Compartment and can be latched to the compartment ceiling Hold Locking Mechanism which is mounted to the ceiling structural area.

The L3/R3 Courier Passenger/Crew Doors (Emergency Exit Doors) have been deactivated for the FedEx Main Deck Cargo Compartment configuration.

The FWD and AFT Cargo Compartment Doors can be operated from outside of the aircraft only. The BULK Cargo Compartment Door can be operated from either the outside or inside of the aircraft utilizing the Door Operating Door Handle Mechanism and Door Handle.

The L2/R2 Passenger/Crew Doors, are also deactivated, undergo periodic inspections and door structural area checks for Airframe Airworthiness and Struct ural Integrity criteria p er FAA requirements.

The Airbus Freighter Configuration utilizes the previous Passenger Carrying Version Main Deck that has been converted into the Main Deck Cargo Compartment (MDCC) for hauling Cargo Bins and Palletized Units for FedEx Express Cargo operations.

Passenger Compartment Emergency Exit Doors (L2/R2) In addition to the Courier (Passenger/PAX) / Crew Doors (L1/R!), there are two Emergency Exits (L3/R3) Doors in the Main Deck Cargo Compartment (MDCC). These Emergency Exits (L3/R3) Doors are deactivated for FedEx Main Deck Cargo Configuration.


The Main Deck Cargo Compartment (MDCC) (MDCC) is accessible through the MDCC Door located on the forward LH Side of the Fuselage at the Fuselage Water Line which can be operated from either the inside and outside of the aircraft.

52-4 524

ATA 52 A300/A310

A310 Passenger (PAX)/Courier/Deactivated (PAX)/Courier/Deactivated L/R Doors 2 and 3/and Cargo Compartmentt Doors- Identification Location Compartmen

In Place Deactivated


52-5 525

ATA 52 A300/A310

A300/A310 Exterior Doors - Operation Limitation Gusting or High Wind Conditions Exterior Doors - Operation Limitations

The emergency power system on the L1/R1 courier passenger/crew doors is designed to open the doors in wind speeds gusting up to 40 (forty) knots under the most adverse combinations of wind direction and aircraft attitude. In wind speeds above 40 (forty) knots manual assistance may be required.

WARNING: WARNI NG: SPECIA SPECIAL L PRECAUTIONS MUST BE FOLLOWED BEFORE CARRYING OUT MAINTENANCE ON OR NEAR COURIER PASSENGER/CREW DOORS (REF. 52-10-00, P. BLOCK 301) OR CARGO DOORS (REF. 52-30-00, P. BLOCK 301).

The FWD and AFT cargo compartment doors are opened and closed hydraulically. Their operation is limited by wind speeds gusting up to 60 (sixty) knots.

NOTE: In following following limitations, limitations, door operation operation is defined as opening, closing or holding the door in the open position.

The bulk cargo compartment door opens inward, therefore there are no operation limitations. limitations.

The courier passenger/crew doors can be operated in normal conditions in wind speeds gusting up to 60 (sixty) knots without structural damage, although extra personnel may be required to operate these doors in high wind speeds.


The MAIN DECK cargo door operation is limited by wind speeds gusting up to 40 (forty) Knots.

52-6 526

ATA 52 A300/A310

A300/A310 Exterior Doors - Operation Limitations Gusting and High Wind Speeds

MDCC Door Gusting up to 40 (forty) knots

FWD and AFT Cargo Doors Gusting up to 60 (sixty) knots

BULK Cargo Door Inward OpeningNO wind operational limitations


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ATA 52 A300/A310

A300 A300 Maintenance and Service Doors Location Location Description Maintenance and Service Doors

Door Door Door Door Door Door Door

- Equipmen Equipmentt Compart Compartment ment Acces Access s (312AR) (312AR) - Equipme Equipment nt Compart Compartmen mentt Access Access (313AL) (313AL) - Avioni Avionics cs Compart Compartment ment Acces Access s (121BL) (121BL) - Air Fan ! Air Condition Conditioning ing Control Control Valve Valve Access Access (134AR, (134AR, 136AR) Duct Duct - Tail Tail Cone Cone (31 (317A 7AL) L) Door Door - Drai Drain n Syst System em - FWD FWD Cargo Cargo Compar Compartm tment ent (133AL (133AL)) Door - Ground Ground Air Air Conditioni Conditioning ng and Air Starting Starting (144BR) (144BR) Door Door - Ground Ground Electrica Electricall Power Power Receptacl Receptacle e (121EL) (121EL) Door Door - Ground Ground Oxygen Oxygen Connec Connection tion (122AZ) (122AZ) Doors - Cargo Compartment Compartment Control Control Panel Access (122CR, (122CR, 152KR, 152KR, 231AL)

For maintaining and servicing the various systems, compartments and equipment panels and doors of different sizes are installed. Their purpose can be derived from their designation. These Door Door Doors Doors Door Door Door Door Door Doors

doors and panels are as follows: - Refuel/ Refuel/Defu Defuel el Panel Panel 110VU 110VU (144DR) (144DR) - FWD Jacking Jacking Point Point Receptacle Receptacle (121CL) (121CL) - Ground Serviced Serviced Conditioned Conditioned Air Connection Connection (135AL, 135BL) 135BL) - FWD Potable Potable Water Water Drain Drain (136B (136BR) R) - FWD Lavator Lavatory y Service Service (121DL (121DL,, 136CR, 136CR, 172AR) 172AR) - Green Hydra Hydraulic ulic System System (147AL) Ground Connector Service - APU Access (315AL (315AL and 316AR) 316AR)


Several panels and covers of different sizes are distributed over the aircraft for inspection of the structure, etc.

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ATA 52 A300/A310

A300 Maintenance and Service Doors - Location


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ATA 52 A300/A310

Maintenance and Service Doors Description Maintenance and Service Doors For maintaining and servicing the various systems, compartments and equipment panels and doors of different sizes are installed. Their application can be derived from their designation. These Doors Doors Door Door Door Door Door Door Door Door

doors and panels are as follows: - APU APU Access Access (315AL (315AL and 316AR 316AR)) - Equi Equipm pmen entt Compa Compart rtme ment nt Acce Access ss (312 (312AR AR)) - Equip Equipmen mentt Compa Compart rtmen mentt Acces Access s (313A (313AL) L) - Avio Avioni nics cs Comp Compar artm tmen entt Acces Access s (121B (121BL) L) - Air Fan ! Air Air Condit Conditioni ioning ng Contr Control ol Valve Valve Acces Access s (134A (134AR, R, 136AR) Du ct ct - Tail Co Cone (3 (317AL) Door - Dr ai ain Sy Sy st ste m FW D Ca rg rg o Com pt pt . ( 13 13 5A 5AL ) Door Door - Groun Ground d Air Air Condi Conditi tioni oning ng and and Air Air Start Starting ing (144 (144BR BR))


Door Door Door Door Door Door Doors Door Door Doors Doors Doors Door oor Door Door Door Door

Groun Ground d Elec Electr trica icall Powe Powerr Rece Recepta ptacl cle e (121 (121EL) EL) Pota Potabl ble e Wat Water er Serv Servic ice e (13 (136B 6BR) R) Grou Ground nd Oxyg Oxygen en Conn Connec ecti tion on (122 (122AZ AZ)) Cargo Cargo Compt. Compt. Control Control Panel Panel Access Access (122CR (122CR,, 677CR) 677CR) Refu Refuel el/Def /Defue uell Pan Panel el 110V 110VU U (14 (144D 4DR) R) FWD Jackin Jacking g Point Point Recep Receptac tacle le (121C (121CL) L) Ground Ground Servi Serviced ced Condi Condition tioned ed Air Air Connect Connection ion (135B (135BL) L) FWD FWD Lava Lavato tory ry Ser Servi vice ce (12 (121D 1DL) L) FWD FWD Pot Potab able le Water Water Drai Drain n (13 (136B 6BR) R) Landi Landing ng Gear Gear Door Door Groun Ground d Openin Opening g (148BR (148BR)) Contr Control ol Valv Valve e Handle Access Door Door - Green Green Hydr Hydraul aulic ic Syste System m (147AL (147AL)) Ground Ground Conn Connect ector or Servi Service ce Several panels and covers of different sizes are located over the aircraft for inspection of the structure and other purposes.

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ATA 52 A300/A310

A310 Maintenance and Service Doors - Location


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ATA 52 A300/A310

A300/A310 Landing Gear Doors - Location Description Landing Gear Doors With the landing gear retracted in flight the landing gears are covered by doors. These doors close the wheel wells flush with the aircraft skin. The landing gear doors are hydraulically operated with the landing gears. Each main landing gear is covered by doors 734LH, 744RH attached to the fuselage and 733 and 732LH, 743 und 742RH attached to the gear shock struts. The nose landing gear is covered by doors 713, 714, 715 and 716 attached to the edge of the landing gear bay and an additional panel 712 is attached to the landing gear shock strut.


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ATA 52 A300/A310

A300/A310 Landing Gear Doors - Location

Front View Looking Aft


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ATA 52 A300/A310

A300/A310 Fixed Interior Doors - Location Description Fixed Interior Doors The various internal compartments are accessible through the appropriate doors. Their purpose can be derived from their designation. The following doors belong to this group: Door - Flight Co Compartment Doors Doors - Avioni Avionics cs Comp Compart artmen mentt Acce Access ss (131A (131AZ, Z, 132A 132AZ) Z) Doors - Hydraul Hydraulic ic Compart Compartment ment Access Access (147DZ, (147DZ, 147CZ, 147CZ, 147BZ, 147BZ, 148CZ, 148DZ) Door Door - Aft Aft Cabi Cabin n Und Under erfl floo oorr Comp Compar artm tmen entt (162 (162AZ AZ)) Doors Doors - Verti Vertical cal Stabi Stabili lizer zer Acces Access s (311A (311AZ/3 Z/311B 11BZ) Z)


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ATA 52 A300/A310

A300/A310 Fixed Interior Doors - Location


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ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/Crew Doors Door Suspension - Component Location General eneral Ther Ther e ar e t wo couri er passenger/ passenger/ cr ew door door s ( L1/ R1) R1) i nst al l ed on t he LH and RH f usel age si des. FWD passenger / cr ew doors L H and RH at zones 831 and 841 ar e l ocat ed bet ween FR14 and FR16A. Both doo doors rs are str uctural l y and and mechan echanii cal l y si mi l ar and and are are desi gned gned t o be be used used as as emer gency gency exi t s. The openi openi ng and cl osi ng operati operati ons ons are accom accompl i shed shed by by i nteri or and and exteri exteri or cont cont rol hand handll es, t he doors doors openi openi ng out out wards and and par par al l el t o the f usel usel age age i n t h e di r e ct ct i on of of f l i ght . Each Each door door i s compri sed of t he f ol l owi ng maj or compone ponents: nts:

Door Damper and and Em Em ergen er gency Op Operat erat er atiii on on Cyl Cyl i nder The door dam per and emergency oper oper at i on cyl i nder nder i s i nst al l ed on t he suppo supporr t arm. I t i s compri sed of a cyl cyl i nder nder body, body, a dam dampi ng assembl y and and a gas gas cyl i nder nder and percussi on devi ce assembl y wi t h a manua anuall safet y l ock. ock. I t l i mi t s t he speed speed of t he door door duri duri ng normal openi openi ng and cl osi ng operat operat i ons and and act s as a j ack und under er emergency condi condi t i ons. D Data at a Cour our i er P Passen assenge assen assenger / Crew Cr ew Door (L1/ R R1) Si ze : 1.930 x 1. 1. 070 070 m( 76 x 42 42 i n.) Wei ght ght wi t h escape escape sl i de and and door door l i ni ng : 190 190 kg ( 419 419 l b. ) Wei ght ght wi wi t hout hout escape escape sl i de and and door door l i ni ng : 125 125 kg kg ( 276 276 l b. ) Wei ght ght wi t h sl i de raf t and and door door l i ni ng : 214 214 kg ( 472 472 l b.)

Door oo oor oorr Str ucture, Door oo oor rr Seal and Drrai ai n nH Hol es The s t r uct ure compri ses an outer and an i nner nner ski n suppor suppor t ed by i ntegral st r i ngers, ngers, edge edge and and cross member ber s and mi l l ed l onge ongerr ons. ons. The door seal , made f r om a r ubber ubber ext r usi on and i nst al l ed r ound ound t he i nner nner edge edge of t he out out er ski n i s pressed pressed i nto contact contact wi wi t h a seal seal i ng secti on of t he f usel usel age age doo doorr f rame and and i nfl ated by by cabi cabi n ai r pressure to f orm a pressure pressure ti ght ght s eal eal when hen the door door i s cl osed. osed. Hol es are are bored bored i n the st ructure at t he l owest col l ect ect i on poi poi nts of l ongerons rons to all ow l i qui ds to drai drai n fromdoo fromdoor i nteri or.

Com Com ponent Locat Locati on

Door Suspensi on The door suspensi suspensi on compri ses a support support arm i n t he f orm of a l i ght al l oy box secti secti on, on, wi th i ntegral tegral con connecti ecti on f orks, att ached ached t o the door door by conne connect ct i on l i nks, t he l ower one bei bei ng al so att att ach ached t o the the l i f t i ng shaft shaft of t he door oor l ocki ocki ng mechan echanii sm. A door door st ay m echan echanii sm i s i nstal l ed i n the supp support ort arm whi ch l ocks the door door i n the open open posi posi t i on. on. The The upp upper er and l ower gui gui de arms att ached ached t o the fusel age age at at t achm achment ent f i t t i ngs ngs are movabl ovabl e i n two two pl anes anes and and cause cause t he door door t o remai n paral paral l el t o t he f usel age age duri duri ng open openii ng and and cl osi ng. ng. Door oor Li n ni i ng ng an an and I n nsu sull ati on The door l i ni ng consi st s of panel panel s whi ch mat ch t he i nter i or decor of t he mai n deck car go compart ment . A sound and and heat heat mat i s i nstal l ed bet bet ween een t he door door i nner nner ski n and and l i ni ng. ng.


52-16 5216

Suspensi si on -------------------------------------------------------FI N FUNCTI ONAL DESI GNATI ON PANEL PANEL ZONE ACCESS ATA DOOR REF REF ------------------------------------------------------- UPPER GUI DE ARM 831, FWD 841 52- 11- 12 LOWER GUI DE ARM 831, FWD 841 52- 11- 12 SUPPORT ARM 831, FWD 841 52- 11- 12 DOOR DAMPER PE R AND EMERGENCY 831, 831, FWD OPERATI ON CYLI NDER 841 52- 10- 14 LOWER CONNECTI ON L I NK 831, FWD 841 52- 11- 21 UPPER CONNECTI ON LI NK 831, FWD 841 52- 11- 21

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/Crew Doors Door Suspension - Component Location


52-17 5217

ATA 52 A300/A310

Door Locking Mechanism

Door oor Locki ng Mechani echani sm Two door handl handl es r ot at i ng about about a hor i zont al axi s are i nstal l ed for ope operat i on of t he do door l ocki cki ng mechan echanii sm, one one i nter i or and one one ext ext eri or. The The hand handll e shaf shaf t s ar e coup coupll ed by a gea gearr box box t o perm permi t i ndep ndepen ende dent nt oper oper at i on. on. The The han handl dl es are conne connect ct ed vi a bel l cranks cranks and rods rods to a l i f t i ng sha shaf t , a l oweri ng shaft shaft and and a l ocki ocki ng shaft shaft . Locki Locki ng Mechani echan echani echani i sm FI N FUNCTI ONAL DESI GNATI ON

PANEL

DOOR LATCHES RODS BET BETWEEN DOOR L ATCHES AND AND BEL L CRANK BELLCRANK ON LOCKI LOCKI NG SHAFT L OCKI NG SHAFTS ROD BETW BETWEEN EE N L OCKI NG SHAFT AND GEAR BOX L OWERI NG SHAF T ROD BETW BETWEEN EE N L OWERI NG SHAFT SHAFT AND GEAR BOX GEAR BOX


ZONE

831, 841 831, 841 831, 841 831, 841 831,

ACCESS DOOR F WD

I NTERI OR CO CONTROL HANDL E EXTERI EXTE RI OR CONTROL HANDL E ROD BET BETWEEN EE N GEAR EAR BOX AND TWI N L EVER TWI N LEVER LEVER

ATA REF 52- 11- 21

F WD 52- 11- 21 F WD 52- 11- 21

ROD BETW BET WEEN EE N TWI N LEVER AND L I FTI NG SHAFT ROD BETW BETWEEN EE N LI FTI NG SHAFT SHAFT AND L OWER CONNECTI ECT I ON LI NK L I FTI NG SHAFT

F WD 52- 11- 21 F WD

841 831, 841 831,

F WD

841 831,

F WD

ROD ASSY BETW BET WEEN EEN LI FTI NG SHAFT AND TORQUE SHAF T TORQUE SHAFT

F WD 52- 11- 21

TORSI ON BA BAR R SPRI SPRI NG

841 831,

F WD

52- 11- 21

841 831,

F WD

841 831,

F WD

52- 11- 21

841 831, 831, 841 831,

52- 11- 21

F WD

841 831,

F WD

FWD 52- 11- 21

52- 11- 21

841 831, 841 831, 841 831, 831, 841 831, 831, 841

52- 11- 21 F WD 52- 11- 21 F WD 52- 11- 21 FWD 52- 11- 21 FWD 52- 11- 21

52- 11- 21

52-18 5218

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Locking Mechanism - Component Location


52-19 5219

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/Crew Doors - Emergency Escape Slide Release Mechanism - Component Location G General eneral Em Em er ergency gency gency Escape Escape Sl Sl Sl ii de de Rel Rel ease ease M M echani echani sm sm The mechani sm cons i st s of a t wo- posi t i on cont r ol handl e, a compos i t e l i nkag nkage, e, bel bel l cranks and and l i nkage nkage gui gui des des and i s conne connect ct ed t o the door door s t r u c t u r e b y b ea ea r i n gs gs a nd nd gu gu i d e f i t t i n gs gs . T he he co co nt nt r o l h a nd nd l e i s l o c at at e d a dj dj a c en en t t o t h e i n t e r i o r d oo oo r l o c ki ki n g h an an dl dl e an an d c a n b e s e t f o r f l i g ht ht i n t h e f u l l y f o r wa wa r d po po s i t i o n ( a r me d p os os i t i o n) n) o r o n t h e gr gr o u nd nd i n t h e f u l l y a f t p os os i t i o n ( d i s a r me d p os os i t i o n) n) . T he he me c ha ha ni ni s m c a n b e ma nu nu al al l y operat operat ed only and open openii ng of t he door door usi ng t he exter i or l ocki ng handl handl e wi l l c a us us e t h e me ch ch an an i s m t o r e v er er t t o t h e f u l l y af af t p os os i t i o n. n. Latch Latch and an and and d S Stop Stop top Fit Fi Fi tttii ng ngs ngss Bot Bot h edge edge member ber s of each door door are f i t t ed wi t h ei ei ght ght s t op f i t t i ngs ngs f or each of whi ch mati ng f i t t i ngs ngs are mounted ounted on t he fusel age age door door f r ame. A l o we we r i n g s t o p i s i n s t a l l e d o n t h e f o r wa wa r d s i d e o f t h e f u s el el a ge ge do do or or f r ame whi ch contact contact s t he l oweri ng shaft when hen the door door i s cl osed. osed. The The shaft rot ates t o unl unl ock t he gearbox gearbox and and l ower t he door. door. Two rol l er f i t t i ngs ngs are at at t ached ached t o the f usel age age door door fr ame whi ch suppo support rt t he l i f t i n g s h af af t d ur ur i n g t h e l i f t i n g mo ve ve me nt nt a s t h e do do or or i s b e i n g op op en en ed ed . L a t c h f i t t i n gs gs a t t a c he he d t o t h e f u s el el a ge ge do do or or f r a me ar ar e f i t t e d wi t h r o l l e r s t o r e ce ce i v e t h e do or or l a t c he he s . F ou ou r f i t t i n gs gs wi t h r o l l e r s ar ar e at t ached t o t he door door edge members whi ch run i n corr espondi espondi ng gui gui de f i t t i ngs ngs on t he f usel age age door door f r ame when hen the door door i s being cl osed. osed.


------------------------------------------------- ------------------------------FI N FUNCTI ONAL DESI GNATI ON PANEL ZONE ACCESS ATA DOOR REF ------------------------------------------------- ------------------------------HANDLE 831, FWD 841 52-10- 30 ECCENTR ECCENTRI C LEVER 831, FWD 841 52-10- 30 STOP LEVER 831, FWD 841 52-10- 30 ROD BETWEEN HANDLE AND BELLCRANK BEL LCRANK 831, FWD UNI T 841 52-10- 30 BELLCRANK UNI T 831, FWD 841 52-10- 30 ROD BETWEEN BELL CRANK UNI T AND LOCKI NG MECHANI SM 52- 10- 30 LOCKI NG MECHANI SM 831, FWD 841 52-10- 30 GUI DE STRUT 831, FWD 841 52-10- 30 ROD BETWEEN LOCKI NG MECHANI SM 831, FWD AND BELLCRANK 841 52- 10- 30 BELLCRANK 831, FWD 841 52-10- 30 LI NKAGE GUI DE 831, FWD 841 52-10- 30 SLI DERS 831, FWD 841 52-10- 30 GI RT BAR 831, FWD 841 52-10- 30 ROD BETWEEN BELLCRANK BEL LCRANK UNI T AND 831, FWD LI NKAGE GUI DE 841 52- 10- 30 ROD BETWEEN BELLCRANK BEL LCRANK UNI T AND 831, FWD LI NKAGE GUI DE 841 52- 10- 30 BELLCRANK UNI T 831, FWD 841 52-10- 30

52-20 5220

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/Crew Doors - Emergency Escape Slide Mechanism Mechanism - Component Location


52-21 5221

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Structural Components - Description Description Door Structure, Door Seal and Drain Holes The outer skin of the FWD door together with the integral stringers are milled from pre-stressed light alloy plate. The door structure between the inner and outer skins consists of light sheet-metal edge and cross members and milled longerons. Adjustable stop fittings, which take the load when the main deck cargo compartment is pressurized, are bolted to the ends of the longerons. A window is installed in the outer skin between longerons 4 and 5. The door seal consisting of a rubber extrusion with equally spaced pressurization holes ensures pressure-sealing of the door when the compartment is pressurized. The seal is installed around the inner edge of the outer skin and retained in-situ by retainers and screws. When the door is closed, the seal is pressed into contact with a sealing section of the fuselage door frame and is inflated by cabin air pressure to form a pressure tight seal. Each door is equipped with two hoist fittings riveted to the structure and outer skin on the right and left above the door center. The fittings are provided with threaded inserts to receive the hoisting lugs. Holes are bored in the structure at the lowest collection points of longerons to allow liquids to drain from the door interior.


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ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Structural Components - Component View


52-23 5223

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Guide and Support Arm Suspension Links - Description Door Suspension Doors are suspended by a support arm and two guide arms attached to the fuselage structure. The support arm is a cast light alloy box section with integral connection forks. Each connection fork is provided with standardized, replaceable bushes.


Support Arm Connection Links The door is attached to the support arm by means of upper and lower connection links. The lower connection link is also connected to the lifting shaft of the door locking mechanism.

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ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/Crew Doors - Guide and Support Arm Connection Links - Component Location

Support Arm (Suspension Air)


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ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Door Lining and Insulation - Description Door Lining and Insulation The door lining consists of panels, which match the interior decor of the main deck cargo compartment. A heat and soundproof insulation mat is provided between the door inner skin and the lining.


Cut-outs are incorporated in both the lining and the insulation mat to facilitate the installation of the locking and emergency escape slide release mechanisms, the interior control and emergency control handles and the window and locking indicators.

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ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Door Lining and Insulation - Component View


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ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Door Seal - General Description General Description The door seal consisting of a rubber extrusion with equally spaced pressurization pressurization holes ensures pressure-sealing pressure-sealing of the door when the compartment is pressurized. The seal is installed around the inner edge of the outer skin and retained in place by retainers and screws. When the door is closed, the seal is pressed into contact with a sealing section of the fuselage door frame and is inflated by cabin air pressure to form a pressure tight seal.


52-28 5228

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Door Door Seal - Installation View

Seal Tubular Type Some A300s

Some A300s and A310s


Seal Round Type

52-29 5229

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Door Buffer and Stay Mechanism - Description Door Buffer/Stay Mechanism/Guide Arms An adjustable do or buffer attache d to the inner face of the support a rm acts as a limit stop and shock absorber when the door is fully open. A door stay mechanism insta lled in the support arm locks th e door in the fully open position. The mechanism comprises a release button, actuating rod and lever, bellcrank, spring-loaded rod and a locking hook. The guide arms are located at the upper part of the door and attached to the door and fuselage structure with fittings that permit parallel link motion for the door travel. On the FWD doors the upper guide arm is connected to the door structure by means of a bellcrank fitted on a spring rod cylinder, damping sideways movement of the door.

The Door Buffer (Door Stop) Gap “M” Clearance between the buffer pad and fuselage skin surface is required to prevent chafing and/or fuselage skin damage/stress during normal and windy conditions If adjustment is required, ref – A300/A310 AMM ATA 52-10-11, Page Block 501, FWD Passenger/Crew Doors - Adjustment/Test. Observe all Warnings. Special Precautions must be followed to prevent injury and/or damage to aircraft/equipment. Ensure Emergency Escape Slide, Door Damper and Emergency Operation Cylinder and Door Warning System are safetied prior to Buffer adjustment per A300/A310 AMM (Ref: 52-10-00, Page Block 301.

Door stay mechanism will require replacement per A300/A310 Aircraft Maintenance Manual (AMM) (Ref.: 52-11-12, Page Block 401, FWD Passenger/Crew Door). For information on Inspection of Door Stay Mechanism, refer to A300/A310 AMM, 52- 10-11, Page Bloc k 501, FWD Pass enger/Crew Doors - Adjustment/Test.


52-30 5230

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Door Buffer and Stay Mechanism - Component View


52-31 5231

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/Crew Passenger/Crew Doors - Damper and Emergency Operation Cylinder - Component View/Location Door Damper and Emergency Operation Cylinder The door damper and emergency operation cylinder is installed on the support arm. The hydraulically operated door damper is used to control the speed at which the door is opened and closed. During normal operating conditions, damping is effected by hydraulic fluid passing from one chamber to another via a calibrated diaphragm when the door is being opened, and via a restrictor in the piston when the door is being closed. In the event of emergency conditions, the door damper acts as a jack to push the door in the required direction. When the door is opened under emergency conditions, the diaphragm is ruptured by the percussion device mechanism and the nitrogen pressure thus released into the cylinder converts the damper into an actuator.


NOTE: After emergency emergency operation, operation, the percussion device device assembly must be removed in order to replace the diaphragm. (Ref. AMM 52-10-14, P.Block 401). NOTE: After emergency emergency operation operation the door can be completely completely closed only after the door damper and emergency operation cylinder has been discharged. To permit door closing immediately after an emergency opening manoeuvre, the actuating cylinder is automatically depressurized through calibrated vent holes in the cylinder body which become free when the actuating cylinder is fully extended. The actuating cylinder is depressurized within a maximum of 3 seconds.

52-32 5232

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/Crew Passenger/Crew Doors - Damper and Emergency Operation Cylinder - Component View/Location


52-33 5233

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Door Locking Mechanism - Description Door Locking Mechanism The door control handles which rotate about their horizontal axis are installed to facilitate operation of the door locking mechanism from both the inside or outside of the door. The shafts of the two handles are coupled via a gearbox thereby permitting independent operation. Rods are connected to a bellcrank hinged on the gearbox and gearbox and routed into the lower door section to the lifting shaft. The lifting shaft is fitted with eccentrically mounted arms which are equipped with rollers sliding in door frame mounted roller fittings to lift the door. The shaft is also connected to a support arm via a rod, a lever and a connection link, and to the torque shaft via a rod assembly and a bellcrank. The torque shaft and torsion bar spring compensate for the weight of the door.


52-34 5234

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Door Locking Mechanism - Component View


52-35 5235

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Door Locking Mechanism - Description Description Latches/Locking and Lowering Shafts/Gearbox Similarly, rods are connected from the gearbox and hinged bellcrank to the upper door section to the locking shaft which retracts or extends the door latches when the door is respectively opened or closed. The latches are connected by rods and bellcranks to the locking shaft and a spring rod cylinder, connected to each latch bellcrank, is attached to the door structure. An arm on each bellcrank forms the locking indicator.


A lowering shaft, also insta lled in the upper door sec tion, acts via a rod on a locking hook to block the gearbox when the door is open. The door cannot, therefore, be lowered when in the open position. The lifting, lowering and locking shafts all rotate in ball bearings. Fittings, complete with rollers, are installed on both sides of the door. They mate with corresponding guide tracks which are located on the LH and RH sides of the door frame parallel to the outer skin and vertical to the door frame.

52-36 5236

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Door Locking Mechanism - Component View


52-37 5237

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Exterior Exterior Control Handle - General The exterior control handle is connected via a jaw to the emergency escape slide mechanism, to disarm the system when the door is opened. The door locking mechanism actuates a limit switch of the Door Warning System. A second limit switch which is installed in the fuselage door frame is actuated by the door latches.

•

Close door with Interior Control Handle

•

Check that Exterior Control Handle is closed and flap is flush with contour of exterior handle

With the door closed (Ref: A300/A310 AMM 52-10-00, Page Block 301), the following operation of the Exterior Control Handle can be checked for disarming the Interior Emergency Control Handle.

The Exterior Control Handle consists of: Control Handle Cam Stop Flap

•

Remove safety pin for Emergency Control Handle

•

•

Set Emergency Control Handle to “ARMED” (fully forward) position

on the door handle assembly

•

Open door with Exterior Control Handle

Operation Check

•

Check that Emergency Control Handle is in “DISARMED” (fully aft) position

•

Insert safety pin with red streamer for Emergency Control Handle

• • •

•

Open and then close the door with the Exterior Control Handle

•

Check the Exterior Flush Handle is closed and flap is flush with contour of Exterior Control Handle

•

Check that Exterior Control Handle is in locked position

•

Open door with Exterior Control Handle

•

Fully open Exterior Control Handle

•

Check automatic locking of Exterior Control Handle


52-38 5238

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Exterior Control Handle - Component and Location

Opening from Outside - Normal Operation L1/R1 Door - Exterior Control Handle (Typical)


52-39 5239

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Emergency Escape Slide Release Mechanism - Description Description The Emergency Escape Slide Release Mechanism, located in the lower door section, comprises a two-position control handle, composite linkage, bellcranks and linkage guides. It is connected to the door structure by bearings and guides. The emergency control handle, which can be manually operated only, is located adjacent to the interior control handle and can be set for flight in fully forward position (ARMED) or on the ground in fully aft position (DISARMED). It is possible to safety the emergency control handle in the fully aft (DISARMED) position by using a safety pin. A mechanically operated shutter (blanking device) blocks the safety pin hole when the emergency control handle is not in the fully aft (DISARMED) position. The connection between the emergency control handle and the door locking mechanism is established by a cam disc and a roller locating in the jaw of the exterior control handle.


52-40 5240

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/Crew Doors - Emergency Escape Slide Release Mechanism - Component View


52-41 5241

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Release/Locking Mechanism - Component View When the exterior control handle is operated to open the door, the release mechanism for the emergency escape slide and emergency door opening is returned to the DISARMED position via the jaw and roller. The door damper and emergency operation cylinder, which opens the door in the event of an emergency or damps the door under normal conditions, is installed on the support arm. The release lever of the emergency operation cylinder is operated by a pivoting stop lever . The stop lever is connected to the emergency control handle via a rod and a bellcrank unit. A rod connects the stop lever bellcrank bellcrank unit to a locking mechanism to block the emergency escape slide release mechanism when the door is open. The rod is connected to a bellcrank loaded by a helical compression spring and to a notched sleeve. When locked, a pawl in the notched sleeve is connected via a guide strut and spring to the lifting shaft.


52-42 5242

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Release/Locking Mechanism - Component View


52-43 5243

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Girt Bar Mechanism - Description Description An additional rod conne cts the bellcrank of the locking mechanism to the bellcrank unit of the linkage guide in the lower door section. The girt bar is suspended in sliders below the door. The conical pins of the linkage guide engage in the sliders when unlocked and disengage from the sliders in the locked position. The fuselage girt bar fittings receive the sliders in the locked position and retain the girt bar connected by strips to the floor-mounted emergency escape slide.


52-44 5244

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Girt Bar Mechanism - Component View


52-45 5245

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Latch Latch and Stop Fittings - Description - MEL Description Latch and Stop Fittings The two members of the door are equipped with eight stop fittings each with corresponding mating fittings mounted on the fuselage door frame. All door stop fittings are adjustable. An adjustable lowerin g stop is installed o n the forward side o f the fuselage door frame between the third and fourth stop fittings. When the door is closed, the roller of the lowering shaft contacts the lowering stop causing the shaft to rotate to unlock the gearbox and lower the door. Upper and lower guide fittings are attached to each side of the fuselage door frame. The upper fittings have an adjustable stop incorporated to enable final settings to be made to the door. Roller fittings mounted on the fuselage door frame support the lifting shaft during the lifting movement of door opening. On the FWD passenger/crew door, the rollers are installed on integral lugs in the upper fuselage door frame. A total of four fittings with guide rollers are mo unted on the ed ge members of the door in the upper and lower areas. The guide rollers locate and run in the corresponding guide fittings on the fuselage door frame when the door is being closed.


52-46 5246

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Latch and Stop Fittings - Component View


52-47 5247

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Opening from Outside - Normal Operation - Component View Operation Opening From Main Deck Cargo Compartment - Normal Operation WARNING: RESIDUAL PRESSURE COULD CAUSE THE DOOR TO OPEN WITH A SUDDEN FORCE AND INJURE PERSONS AND/OR DAMAGE THE AIRCRAFT. WARNING: BEFORE SUPPLYING AIR BY EXTERNAL SOURCE OR APU MAKE CERTAIN THAT: AT LEA LEAST ST ONE FLT COM COMPT PT WIN WINDOW DOW OR CA CABIN BIN DOOR IS OPEN AND REMAINS OPEN DURING SERVICING. IF THE THE A/C A/C IS IS PARK PARKED ED OUTS OUTSIDE IDE AN AND D IS NO NOT T PROTECTED FROM THE RAIN, ONE MAINTENANCE DOOR SUCH AS 134AR, 136AR, OR AVIONICS ACCESS DOOR 121BL IS OPEN AND REMAINS OPEN DURING SERVICING. WARNING: WARNI NG: STOP THE OPENING PROCEDURE IF THE RED WARNING LIGHT FLASHES. RESIDUAL PRESSURE COULD CAUSE THE DOOR TO OPEN WITH A SUDDEN FORCE AND INJURE PERSONS AND/OR DAMAGE THE AIRCRAFT. WARNING: PRIOR TO OPENING THE DOOR DURING NORMAL OPERATION THE EMERGENCY CONTROL HANDLE MUST BE SET TO THE FULLY AFT POSITION.

When the locking shaft is rotated, the bellcranks mounted on it and connected by spring rod cylinders are pulled into a dead-center position, the mechanism being forced to overcome a center of pressure during this process. The door is damped by the door damper and emergency operation cylinder, guided by the two guide arms and, carried by the support arm, it swings outward in the direction of flight until it contacts the door buffer. The door stay mechanism locks the door in the open position. NOTE: During ground ground operation operation in hot climates, climates, ensure access access door 136AR (oval shaped) on the lower fuselage area is open if all other areas are closed on the aircraft. Failure to open access door 136AR when ground preconditioned (air conditioning) air is connected to the low pressure connector ports on the lower side of the fuselage, forward and to the LH side of the access door 136AR can result in pressurizing the fuselage interior pressurized zone areas. This is a dange condition, especially especially with no electrical power on aircraft. REASON: REASON: With no electri electrical cal power power on aircraft, aircraft, the the L1/R1 Courier Courier Passenger/Crew Doors will not provide residual pressure red warning light flashing illumination to warn of fuselage interior area (pressurized areas) are pressurized during door opening procedure. Always ensure electrical power is applie d to aircraft during ground pre-conditioned air operation and oval shaped door 136AR or 134AR (forward of 136AR door/aft of nose gear area on the lower fuselage are open. Be safe and evaluate situation as hand to maintain safe conditions.

Lifting the interior control handle releases the door locking mechanism. The movement of the handle is transferred via the gearbox, bellcranks and rods to the lifting and locking shafts. The lifting shaft eccentrically mounted arms equipped with rollers sliding in the door latches are retracted by the locking shaft, the door can be lifted clear of the stops and swung outwards.


52-48 5248

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Opening from Outside - Normal Operation - Component View


52-49 5249

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Residual Residual Pressure Warning System - MEL

Flight Crew Maintenance Crew


52-50 5250

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Residual Pressure Warning System - Component View


52-51 5251

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Opening from Courier Compartment - Component Locations Operation From Outside - Normal Operation WARNING: RESIDUAL PRESSURE COULD COULD CAUSE THE DOOR TO OPEN WITH A SUDDEN FORCE AND INJURE PERSONS AND/OR DAMAGE THE AIRCRAFT.

Residual-Pressure Warning System When there is an existence of residual pressure in the cabin, a warning is visually given at the passenger/crew doors. The warning is visible inside and outside the aircraft as a flashing red light when: The escape slide is DISARMED, Engines 1 or 2 are off, The residual differential pressure is more than 0.0025 bar (0.0362 psi). • • •

WARNING: BEFORE SUPPLYING AIR BY EXTERNAL SOURCE SOURCE OR APU MAKE CERTAIN THAT: AT LEA LEAST ST ONE FLT FLT COM COMPT PT WIN WINDO DOW W OR CAB CABIN IN DOOR IS OPEN AND REMAINS OPEN DURING SERVICING. IF THE THE A/C A/C IS IS PARK PARKED ED OUTS OUTSID IDE E AND AND IS NO NOT T PROTECTED FROM THE RAIN, ONE MAINTENANCE DOOR SUCH AS 134AR, 136AR OR AVIONICS ACCESS DOOR 121BL IS OPEN AND REMAINS OPEN DURING SERVICING.

Flashing Unit/Warning Light Each Courier Passenger/Crew Door has one flashing unit (red warning light). The red warning light begins to flash when the residual differential pressure exceeds 0.0025 bar (0.0362 psi). The red warning lights are deactivated when the escape slides are activated at the L1/R1 door locations.

NOTE: When opening the the door from the outside, outside, the position position of the emergency escape slide release mechanism is of no importance. The exterior control handle automatically unlocks the emergency escape slide release mechanism via the gearbox to place it in the fully aft position. Push the flap of the exterior control handle and lift the handle upwards. A jaw in the control handle mo ves an eccentr ic lever. The cam and dis c mechanism then moves the emergency control handle to the fully aft position and locks the girt bar to the door thereby prohibiting escape slide operation.


52-52 5252

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Opening from Courier Compartment - Component Locations


52-53 5253

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Door Damper and Emergency Cylinder - Servicing FWD L1/ R1 DOOR DAMPER AND EMERGENCY OPERATI ON CYLI NDER - SERVI CI NG

C. P r ep ep ar ar a t i o n f o r I ns t a l l a t i o n ( 1)Rem 1)Remove and and di scard seals (7) , ( 8), ( 9). ( 2)Cl ean ean removed oved part part s usi ng brush, brush, cl ean ean l i nt- f ree cl oth and and cl eani eani ng agent agent ( Mat. No. 1111- 008). 008). ( 3)Dry components ponents usi ng cl ean dry ai r .

WARNI NG : SPECI AL PRECAUTI ONS MUST BE FOLLOW FOLL OW ED BEFORE CARRYI NG OUT MAI NTENANCE ON OR NEAR PASSENGER/ CREWDOORS. ( REF. 52- 10- 00, P. BLOCK 301). NOTE : The LH and RH door damper and emer gency operat i ng cyl i nder ar e i denti denti cal cal i n desi desi gn and and f uncti uncti on. on.

1. Reason eason f or t he J ob Repl Repl acement ent of di aphr aphr agmi n per per cussi on mechani echani sm aft er emergency operati operati on. on.

WARNI NG : MAKE SURE THAT YOU I NSTALL THE CORRECT ( ALUMI NUM) SHEAR PI N ON THE DOOR DAMPER PERCUSSI ON DEVI CE. I NSTALLATI ON OF AN I NCORRECT SHEAR PI N WI LL PREVENT OPERATI ON OF THE ACTUATOR I N EMERGENCY MODE.

2. Equi Equi pment and Mat eri al s - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - --- - - - I TEM DESI GNATI ON - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - --- - - - A. Access ccess Plat f orm, 4.6 m( 15 f t. ) B. 701701- 2978000 2978000 Pi n Saf et y - Passenger Door Damper and Emer gency Operat i on Cyl i nder C. Torque Wr ench, 1. 0 m. daN ( 88. 88. 49 l bf. i n) D. Seal Seal s f or Percussi Percussi on Mechan echanii sm E. Di aphragm aphragm F. Pi n f or Percussi Percussi on Mechan echanii sm G. Lockw Lockwi re, Corrosi onon- Resist ant ant Steel Steel , Di a. 0,63 mm (0. 025 025 i n.) H. Materi al No. 1111- 008 008 Cl eani eani ng Agents gents ( Ref. 2020- 3131- 00) 00) Ref Ref erenced Procedures - 1111- 3232- 52, 52, P. Bl ock 1 - 5252- 1010- 00, 00, P. Bl ock 301 301 - 5252- 1010- 13, 13, P. Bl ock 401 401

( a ) I n st st a l l (b)I nstal l i n body body ( c ) I ns t a l l

(d)Posit i on percussi percussi on mech echani ani sm( 4) and and i nstall screws (3), (5). (e) Loose Loosen n knurl knurl ed screw (1), posi posi ti on rel ease ease l ever ever (2) i n gui gui de (17) and and t i ghten ghten knurl knurl ed screw ( 1). CAUTI ON : W HEN REFI LL I NG A BOTTL E DO NOT EXCEED THE MAXI MUM PRESSURE I NDI CATED ON THE PLACARD PL ACARD.

Doors oors - I nteri or Pl acards acards and and Marki ngs ngs Passen Passenge ger/ r/ Crew Doors oors - Special Special Precaut i ons ons FWD Door Li ni ng and I nsul ati on

(f )Charge )Charge nit rogen rogen bott bott l e vi a charging charging val val ve (13) wi th dry ai r or ni t rogen t o t he pressure i ndi ndi cated on t he pl acard acard ( Ref. 1111- 3232- 52, 52, P. Bl ock 1). CAUTI ON : DO NOT APPL Y MORE THAN THE SPECI FI ED TORQUE TO THE NUT OF THE FI LL I NG VALVE. OVERTORQUE WI LL CAUSE DAMAGE TO THE VALVE, AND WI LL THUS CAUSE LEAKAGE OF NI TROGEN FROM THE CYLI NDER. NOTE : Pl acard acard i s si tuated on t he t op of suppo support rt arm or on door door f r ame l i ni ng f orward orward of support support arm. ( g)TORQUE t he nut nut of t he f i l l i ng valve ( 13) 13) t o 1.0 m. daN daN ( 8 8. 8. 49 l bf . i n) . (h)Secure (h)Secure knurl knurl ed screw (1) to rel ease ease l ever ever (2) using l ockw ockwi re.

A. J ob SetSet- Up (1)Posit i on acce access ss platf orm. WARNI NG : SPECI AL PRECAUTI ONS MUST BE FOLLOWED. ( 2)Saf ety emergency escape sl i de, door door dam per and emergency oper oper ati on cyl i nder nder and and door door warni ng system (Ref. 5252- 1010- 00, 00, P. Bl ock 301). 301). ( 3)Rem 3)Remove uppe upperr suppo support rt arm arm l i ni ng ( Ref. 5252- 1010- 13, 13, P. P. Bl ock 401). 401). ( 4)Check 4)Check bot bot t l e gage gage to ensure ensure that no pressure exis t s i n cyl i nder. nder. Vent ent pressure pressure through through f i l l val val ve. ve.

E. Test Test ( 1)Open and and cl ose door door and check check f or dry ai r or ni t r ogen ogen l eaks. eaks.

B. Removal ( 1)Di 1)Di aphragm aphragm ( a)Lock t he door door dam damper and and emergency operat operat i on cyl i nder nder wi t h saf ety pi n ( 16) 16) PN 701-2978 701-297820 200 0 of saf ety pi n assy PN 701-2978 701-297800 000. 0. ( b)Cut b)Cut and and remove l ockw ockwi re f rom knurl knurl ed screw ( 1) and and rel ease ease l ev er er ( 2 ) . ( c) Rem Remove broken pi eces of shear pi n ( 15) 15) .


n ew ew s he he ar ar pi n ( 1 5) 5) . space spacerr (12), (12), spri ng (11) (11) and and new new di aphra aphragm(10) gm(10) ( 14) 14) . ne w s e a l s ( 7 ) , ( 8 ) , ( 9 ) a nd nd gu i d e ( 6 ) .

CAUTI CAUTI ON : WI TH SCREWS ( 3) , ( 5) FULLY TI GHTENED TENED, A CLEARANCE OF BETW EEN 0. 3 AND 0. 4 MM ( 0. 012 AND 0. 016 I N. ) EXI STS BETWEEN GUI DE ( 6) AND BODY ( 14) .

3. Procedu Procedure re

D. I ns t a l l at i on (1)Di aphr agm

F. Cl oseose- Up ( 1)Make cert ai n t hat hat work area i s cl ean ean and and cl ear ear of t ool ool s and and mi scel l aneous aneous i t ems of equi equi pment. (2) I nstall upp upper er suppo support rt arml i ning. ning. (Ref (Ref . 5252- 1010- 13, 13, P. Bl ock ock 401). 401). WARNI NG : SPECI AL PRECAUTI ONS MUST BE FOLLOWED.

52-54 5254

ATA 52 A300/A310

A300/A310 L1/R1 Courier Passenger/ Passenger/Crew Crew Doors Percussion Percussion Mechanism - Servicing Percussion Striker Mechanism

CAUTION: Check Clearance after tightening guide 6 and body 14 See AMM 52-10-14-3/ Block Page 301

TEMP (F) DEG +122 +103 + 85 + 69 + 49 + 32 + 13 - 4 - 23 - 41

Diaphragm (disk)

Charging Valve Gaseous Nitrogen

Shear Pin

Safety Pin


52-55 5255

ATA 52 A300/A310

A300/A310 Courier Passenger/Crew Doors Door Warning and ECAM Activation - General Description Description The door warning system electrically monitors the "open/not locked" and "closed/locked" "closed/locked" positions of the FWD Passenger/Crew Doors. Doors. A residual pressu re warning system is als o installed in the FWD Passenger/Crew Doors (LH and RH). Incorporated in each door are warning switches which are open when the door is opened or unlocked. Displays are provided for the flight crew on the cockpit center pedestal. These comprise two MASTER CAUTION pushbutton switches, two Cathode Ray Tubes (CRTs) and a selection control panel, all of which form part of the Electronic Centralized Aircraft Monitoring (ECAM) system. The FWD Passenger/Crew Doors (LH and RH) are monitored by two switches indicating "door open" and "door not locked. The residual pressure warning lights installed in the FWD Passenger/Crew Passenger/Crew Doors are in the form of red flashing lights. The warning lights convey a visual warning that residual pressure is present in the aircraft.


52-56 5256

ATA 52 A300/A310

A300/Some A310 Courier Passenger/Crew Doors Door Warnings and ECAM Activation - General View


52-57 5257

ATA 52 A300/A310

Some A310 Courier Passenger/Cre Passenger/Crew w Doors Door Door Warning and ECAM Activation - General Description The door warning system electrically monitors the "open/not locked" and "closed/locked" positions of the FWD Passenger/Crew Doors (L1/R1). A Residual Pressure Wa rning System is also installed in the FWD Passenger/Crew Doors (LH and RH). Incorporated in each door are warning switches which are open when the door is opened or unlocked. Displays are provided for the flight crew on the cockpit center pedestal. These comprise a Warning Light Display Panel (WLDP), two Cathode Ray Tubes (CRTs) and a selection control panel, all of which form part of the Electronic Centralized Aircraft Monitoring (ECAM) system. The FWD Passenger/Crew Doors (LH and RH) are monitored by two switches indicating "door open" and "door is not locked." The Residual Pressure Warning Light installed in each door is in the form of a red flashing light. The warning lightss convey a visual warning that residual pressure is present in the aircraft.


52-58 5258

ATA 52 A300/A310

Some A310 Courier Passenger/Crew Doors - Door Warnings and ECAM Activation - General View


52-59 5259

ATA 52 A300/A310

A300/Some A310s L1/R1 Courier Passenger/Crew Doors Escape Slides - General Description General Description REF: ATA Chapter 25-61-20-0 The courier area is provided with two double-width passenger/crew doors. Each door is fitted with an automatically deployed and inflated escape slide to facilitate the emergency evacuation of all persons in the shortest possible time. Both slides are of the inflatable type, using cylinder-stored compressed gas. The escape slides are mounted on the door structure, armed/disarmed by the door emergency escape slide release mechanism, and activated by the door opening process. The passenger/crew doors (Z831 and Z841) are each fitted with a duallane escape slide allowing for two abreast evacuation. The passenger/crew door girt bar retaining mechanism controls actuation and deployment of the dual escape slides. The doors are equipped with an emergency escape slide warning system. When the emergency control handle is placed in the ARMED position and the interior control handle is lifted to open a door, an electrical warning system on the door is activated providing audio and visual warning sign als (Ref. 52-73-00). General The passenger/crew doors are structurally and mechanically similar, and are designed to be used as emergency exits. The opening and closing operations are accomplished by interior and exterior control handles. The doors unlock upwards, open outwards, move forward parallel to the fuselage and lock in the open position.


52-60 5260

ATA 52 A300/A310

A300/Some A310s L1/R1 Courier Passenger/Crew Doors Escape Slides - General View


52-61 5261

ATA 52 A300/A310

A300 L1/R1 Courier Passenger/Crew Doors Dual Lane Escape Slide - General Components General The passenger/crew door escape slides are the dual-lane type having an automatic deployment mode. The door-mounted dual escape slides are non- handed and completely interchangeable interchangeable from LH to RH locations. Each escape slide consists of the following components: • Inflatable • Inflation System • Packboard Assembly • Decorative Cover

Restraint Devices Restraint devices are used to control the deployment sequence by res- training the inflatable so that it remains folded in thirds until it becomes sufficiently pressurized to assure that it is fully extended when it first contacts the ground. The primary restraint mechanism is a precision tension fuse, frangible link, which separates at a predeter- mined force value. Supplemental Velcro panels are used in conjunction with the tension fuse to assure repeatable, reliable deployment charac- teristics. These supplemental panels are sewn to webbing straps which are permanently attached to the inflatable, adjacent to the frangible link attach points.

The inflatable comprises a rectangular structure formed by a pair of longitudinal 'body' tubes connected by mitered intersections to the sill and runway tubes. An additional longitudinal tube, centrally located, provides positive lane division. Additional intermediate cross tubes minimize body tube twist or 'roll' motions under load to prevent the sliding lanes from being formed into ' troughs' which would adversely affect evacuation rate. The air holding structure is constructed of heat-reflective, urethane-coated nylon. The air-holding tube upper surfaces, which can be contacted by evacuees footwear, are protected by floor fabric to avoid penetration of the air-holding chamber. The sliding surface (floor) of the slide is attached as a taut membrane commencing at the top of the sill tube, extending to the top of the runway tube, and to the inside of the longitudinal tubes at varying heights along their length. The floor surface is not coated, thus providing a color contrast to positively outline the sliding lanes. This composite tube/floor structure can handle up to four evacuees per lane at any one time without collapsing. Approximat Approximately ely the the lower lower one-fou one-fourth rth of of the slide slide body is curved curved to form a 'hook' 'hook' contour contour for transitioning the angle of the sliding surface at the runway end. This transition supplements the braking action of the urethane-coated deceleration deceleration panels at t he runway end. The deceleration panel provides positive deceleration to the evacuees that assures they are brought to on upright position and are able to walk away from the slide. Side rail tubes, located along the body tubes at the sill end, provide effective evacuee containment.

Relief Valve A relief ef valve valve is installed nstalled on on the undersid underside e of the the inflatab inflatable le at the the lower lower interm intermedia ediate te cross cross tube to limit the maximum pressure, due to in- t ernal gas temperature changes, changes, to maximum operational pressure.

Grasp Lines In order to facilitate use of the slide as a flotation device, grasp lines are fitted for survivors in the water. The grasp lines are constructed of nylon webbing and are permanenty attached at intervals around the perimeter of the unit. Re-entry Tape The re-entry tape is provided as an aid in reboarding the aircraft if necessary after an emergency evacuation. Constructed of white webbing, the tape is permanently attached at one end to the sill tube of the inflatable and retained at intervals with Velcro and snap fasteners along the left hand body tube.


No-fail Handles In case of pressure loss within the inflatable, no-fail handles, constructed of webbing, are located on both outer body tubes at the runway-end to allow for the deflated slide to be utilized as a chute. The handles are grasped by persons standing on the ground and the slide is extended to form a hand-held evacuation chute. Lighting System The lighting system consists of an integral power unit, lamp harness assemblies, and builtin test circuitry and test connector. The system is used to provide directional guidance for evacuees, as well as general lighting of the sliding surface and immediate area at the base of the inflatable. • The power power unit is composed composed of multiple primary primary cells. ls. The cell stack internal wiring, wiring, test circuiting and activation switch are encapsu- lated in a tubular housing. The power unit is located on the underside of the inflatable in a nylon fabric pouch attached to the inflation reservoir sling. To allow for the power unit to be easily checked and replaced without disturbing the packed inflatable, the pouch is attached off center to the left and reinforced with a plastic cylinder cylinder insert. The power unit has the capability to provide power to the lamps for a maximum of one hour and a minimum of 10 minutes at low ambient temperature. • Two electrical ectrical lamp amp harness harness assemblies assemblies are attached attached to the slide. slide. Each assembly runs down either side of the sliding surface and across the runway tube of the inflatable. The harness assemblies consist of incandescent tubular lamps soldered in parallel to insulated, flat, dual-lead, copper cable. • The lighting lighting system system is automatically actuated during the slide deployment sequence by means of a nylon switch pin attached to the actuating lanyard. The switch pin is withdrawn from the power unit by dis- tention of the inflatable.

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A300 L1/R1 Courier Passenger/Crew Doors Dual Lane Escape Slide - General Components


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A300/Some A310s L1/R1 Courier Passenger/Crew Doors Escape Escape Slide Inflation System - General Description Inflation System Reservoir The inflation reservoir is installed in a urethane-coated nylon fabric sling which is attached by webbing straps to the underside of the inflatable. The reservoir is a composite structure consisting of a seam- less aluminum liner reinforced with overlapping Kevlar filaments bonded with epoxy resin. Valve/Regulator A valve/regulator assembly is ins talled on the inflation reservo ir, maintaining discharge pressure approximately constant throughout the inflation cycle. A ball-type valve section retains the gas charge, then provides full flow when the valve is opened by tensioning of the inflation cable assembly as the inflatable falls from the pack during door opening in the emergency mode. Installed in the pulley housing of the valve are a frangible disc relief device to limit excessive pressure build-up in the storage reservoir and a filler valve for charging the inflation reservoir. For maintenance purposes, the valve is safetied by use of the lock pin. The valve incorporates a direct-reading temperature-compensated gage, which indicates the gas charge in the inflation reservoir in relation to ambient temperature. When the inflation reservoir is fully charged, the indicator needle is within the limits of the green 'GO' band. The 'GO' band moves as a function of temperature. The indicator pointer moves as a function of the reservoir pressure. Manual Inflation Assembly A manual inflation han dle assembly serv es as a backup syste m should the slide not inflate automatically when deployed over the door sill. The manual inflation handle is triangular in shape, constructed of red webbing and secured with Velcro to the girt assembly. The handle is connected through a quick-disconnect to the inflation cable which is connected to the valve/regulator.


Aspirators Aspirator assemblies (two pe r slide) are located in the u pper end on the sides of the body tubes of the inflatable. They comprise an inlet housing section, which contains a nozzle array, and a cylindrical diffuser/mixing tube. The inlet housing is equipped with one-way flappers in the ambient air inlet, which act as a check valve. The aspirator functions as a suction device to draw ambient air by the induction effect from the expansion of high pressure stored gas through the nozzle array. Thus, inflation time is rapid, and reservoir size minimized. Hose Assembly A flexible hose assembly interc onnects the inflation res ervoir with the aspirators. The hose assembly is equipped with swivel end-fittings at it's valve/regulator and aspirator ends.

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A300/Some A310s L1/R1 Courier Passenger/Crew Doors Escape Slide Inflation System - Components


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A300/Some A310s L1/R1 Courier Passenger/Crew Doors Escape Slide Packboard and Cover - General Description Packboard Assembly The packboard is of composite construction and serves as a mounting platform for the ejection system components, the lacing cover with release mechanism, and mounting brackets which attach the system to the passenger/crew door structure. The packboard assembly, in conjunction with the lacing cover, provides structural support and retains the folded inflatable with inflation reservoir. The lacing cover assembly consists of an upper and a lower half, each constructed of yellow urethane-coated nylon fabric. The upper half is attached to the packboard top edge and laced to the lower half. The lower half is retained to the lower edge of the packboard by the lacing cover release assembly. The release assembly permits the lacing cover to be freed from the packboard to enable the inflatable to drop (deploy). An ejection system, to assure po sitive downward deploy ment of the inflatable, is mounted on the inside surface of the packboard. The ejection system consists of a high-pressure air reservoir manifolded via a cable-actuated inflation valve to an ejector bag. The bag is constructed of lightweight yellow urethane-coated nylon fabric, and is attached to the packboard beneath the upper lacing cover half. Decorative Cover A decorative cover attache s to the packboard to enc lose the packed inflatable for appearance purposes. The cover is constructed of Kevlar reinforced phenolic and is color coordinated with the aircraft interior. Quick-release latches provide an expedient means for removal. The decorative cover has a pressure gage viewing window to permit monitoring of the inflation reservoir gas charge pressure. The escape slide system is so designed that the cover can not be installed if the inflation valve/ regulator lock pin is installed.


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A300/Some A310s L1/R1 Courier Passenger/Crew Doors Dual Escape Slide (Packed) - General Features


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A300/Some A310s L1/R1 Courier Passenger/Crew Doors Escape Slide Deployment Ejection Mode - Operation Operation - Deployment Sequence Activation With the door Emergency Control Handle (ECH) placed in the ARMED position, the girt bar is mechanically fastened to the aircraft floor girt bar fittings. Lifting the door interior control handle then initiates the deployment sequence. Ejection During the door's outward movement, the ejector bag actuation and lacing cover release cable assembly, which is attached to the underside of the girt assembly, is tensioned, first releasing the latch mechanism (pawl) by extracting the disc and allowing the shaft located along the lower edge of the packboard to rotate, permitting release of the lacing cover. Immediately after the lacing cover release, the ejector bag inflator actuator lever pin punctures the reservoir, allowing the gas charge to inflate the ejector bag. As the ejector bag inflates, it exerts a downward force on the packed inflatable and inflation reservoir, assuring a positive ejection from the decorative cover and packboard assembly.


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A300/Some A310s L1/R1 Courier Passenger/Crew Doors Escape Escape Slide Lacing Cover Release - Component View


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A300/Some A310s L1/R1 Courier Passenger/Crew Doors Escape Escape Slide Inflation - General Description Escape Slide Inflation Inflation For automatic activation of the system, the reservoir assembly must drop a distance of at least 600 mm below the door sill. As the inflatable is ejected from the dec orative cover and pac kboard assembly, the inflation cable is tensioned and pulls open the valve/regulator assembly, allowing the stored gas within the reservoir to be discharged into the aspirators through the hose assembly. As the stored gas is e xpanded throug h the nozzles in the aspirators, a partial vacuum is created within the mixing tube section, which in turn inducts ambient air into the aspirator inlet housing. This mixture of ambient air/stored gas charge then flows through the diffuser section of the aspirator mixing tube into the inflatable. When gas pressure in the inflatable rises, back flow of the gas mixture is initiated (that is, the aspirator stalls). This condition causes the flappers to close and the remaining stored gas charge 'tops off' the inflatable automatically to its operating pressure. The relief valve in the inflatable prevents overpressurization. Emergency Operation Manual Inflation A red triangular pull-ha ndle is mounted on the rig ht-hand side of the g irt assembly to operate the inflation system manually if the automatic inflation is not initiated. Floatation Device Separation of the inflatable from the ditched aircraft to permit its use as a flotation device is accomplished by first raising the Velcro secured girt extension cover flap and then pulling the release handle. The slide is now free to drift away from the aircraft. The re-entry tape may be used as a hand-line to hold the slide near the aircraft.


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A300/Some A310s L1/R1 Courier Passenger/Crew Doors Escape Slide Deployment Sequence - Operation View


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Some A310s L1/R1 Courier Passenger/Crew Door Dual Lane Escape Slide - Component Description General The passenger/crew door escape slides are the dual-lane type having an automatic deployment mode. The dual escape slides are completely interchangeable from left to right hand FWD door locations. Each escape slide consists of the following components: Inflatable Slide Assembly Inflation System Packboard Assembly Decorative Cover • • • •

Inflatable Slide Assembly The inflatable is constructed from radiant heat reflective polyurethane coated nylon fabrics, pattern cut and bonded together to form a pneumatic tube assembly. The tube assembly is equipped with a relief valve to prevent overinflation. A non-flammable, heat-re sistant fabric provid es the evacuees with a sliding surface in the slide mode, or floor when used as a flotation device. The assembly is attached to the airplane by a metal girt bar inserted through the girt panel. This panel provides a smooth entry onto the sliding surface during land evacuation. In the event of overwater deployment, the panel maintains the slide at the doorway and can be manually released when use of the slide as a flotation device is desired. When functioning as a slide, deceleration panels are provided at the end of each sliding lane to retard speed and aid in positioning the evacuee upright. Lighting assemblies are provided along both sides of the sliding lanes and across the toe of the slide to guide evacuees to the ground in case of evacuation in darkness. The lights are automatically actuated when he slide is deployed.


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Some A310s L1/R1 Courier Passenger/Crew Door Dual Lane Escape Slide - Component View


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Some A310s L1/R1 Courier Passenger/Crew Doors Escape Escape Slide Inflation System - General Description Inflation System The inflation system consists of a Kevlar-wound reservoir for storing the nitrogen/carbon dioxide gas mixture, a regulator valve for con- trolling output of gas from the reservoir, and hose assemblies for transferring the gas to the aspirator inlet fittings. A regulator valve is installed on the res ervoir. This valve incorporate s an actuator assembly that maintains the spring-loaded piston in a closed position when 'cocked'. A lanyard is installed during the cocking operation and is used to trigger the action, releasing the spring tension and allowing the piston to move into an open position. The inflation hoses are flexible and made from a rubber compound, covered with two plies of braided Dacron polyester fiber and incorporate anodized aluminum fittings. The aspirator has a fiber-reinforced plastic body which incorporates an inlet swivel fitting, nozzle ring, flapper valve, and a non-positive closure device. Packboard Assembly and Decorative Cover The packboard assembly is constructed from a Kevlar reinforced honeycomb laminate and will accept a Kevlar decorative cover. It is designed to conform to the limited dimensions of the stowage area. A fabric soft cover restrains the pack and a trigger mechanism is incorporated to release the packed assembly during door operation in the emergency mode.


Operation Activation When the slide is installed on the door, the girt bar is inserted through the girt panel. Retention straps at each end of the girt panel retain the girt bar. With the door Emergency Control Handle (ECH) placed in the ARMED position, the girt bar is mechanically fas tened to the aircraft floor girt bar fittings. Lifting the door interior control handle then initiates the deployment sequence. Deployment A temperature co mpensating gre en/red (Go/No-Go) g age is visible from a view port in the decorative cover to indicate readiness of the evacuation system for deployment. Deployment and inflation of the unit are automatically initiated when the door is opened in the emergency mode. Upon reaching their travel limits, the release pin lanyards, which are attached to the girt, release the packed assembly from the release rails, which remain attached to the door. As the packed assembly falls below the door sill, the packboard speed lacing releases and the unit falls from the packboard. The firing lanyard actuates the regulator valve upon reaching its travel limit. At this time, primary gas is supplied to the aspirators and the inflation is initiated. The slide is inflated to its operating pressure within three seconds after actuation of the firing lanyard. A red manual back-up inflation handle, located on the girt, can be pulled if the unit is not automatically inflated during door opening.

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Some A310s L1/R1 Courier Passenger/Crew Doors Dual Lane Escape Slide (Packed) - Component View


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Some A310s L1/R1 Courier Passenger/Crew Doors Girt Bar Assembly - Component Location and Controls Girt Assembly The inflatable is connected to the aircraft door sill by means of the escape slide release mechanism girt bar. The girt bar is installed through a sleeve in the girt extension and retained by clips. The girt extension is attached to the girt assembly by a series of interlocking nylon cord loops (daisy chain). This series of cord loops is retained by a parachute pin installed through the center cord loop and then breakaway tied. A pull handle/cable attached to the parachute pin permits the pin to be withdrawn, thus causing the girt and girt extension to separate. This girt release arrangement, located under a protective flap, provides an expedient means of detaching the inflated slide from the aircraft (e. g. to facilitate removal after deployment or to permit the inflatable to be used as an auxiliary flotation device). Emergency Control Mechanism The escape slide release mechanism functions to activate emergency opening of the door and initiate the escape slide deployment process. The mechanism is manually operated by the two-position Emergency Control Handle (ECH). The ECH is connected to the door locking mechanism so that the handle can only be repositioned when the door is closed and locked. A safety pin secures the ECH in the DISARMED position only. The ECH is connected by rods to the stop lever and the girt bar control mechanism.


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Some A310s L1/R1 Courier Passenger/Crew Doors Girt Bar Control - Component Location


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A300 L1/R1 Courier Passenger/Crew Doors - Emergency Door Opening Damper and Operation Cylinder - General Door Damper and Emergency Operation Cylinder The door damper and emergency operation cylinder, installed on the door support arm, hydraulically forces the door open upon activation of a percussion device. The release lever of the percussion device is activated by the ECH controlled stop lever. For maintenance purposes, the percussion device must be safetied by insertion of a safety pin and the release lever displaced. After emergency opera tion, the metal diaphra gm within the percussion device must be replaced and the emergency operation cylinder must be serviced.


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A300 L1/R1 Courier Passenger/Crew Doors - Percussion (Firing) Device/Emergency Door Opening - Component View


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A300 L1/R1 Courier Passenger/Crew Doors - Door Operation Modes - General Description Door Operation Normal opening from inside For normal operation, the ECH must be in the DISARMED position, with safety pin installed. Lifting the door interior control handle releases the door locking mechanism verified by an UNLOCKED indication. The lifting shaft eccentrically-mounted arms rotate in the fuselage door frame fittings to lift the door free of the stops. As the door is lifted, the retrac ted stop lever by-passes the door damper and emergency operation cylinder percussion mechanism release lever, so that a damping action only results as the door is pushed open. The door stay mechanism, located on the support arm, locks the door in the open position. Normal opening from outside When opening the door from outside, the ECH is automatically placed in the DISARMED position by a direct connection with the exterior control handle. The door opening then functions identically to the method described for normal opening from inside.


Emergency opening Emergency opening of the door is possible only from inside. Placing the ECH in the ARMED position swivels the stop lever to a position immediately beneath the percussion mechanism release lever and simultaneously secures the girt bar to the floor fittings. Lifting the interior control handle initiates the opening sequence that is similar to the normal opening, with the following differences: As the door is lifted, the stop lever contacts the percussion device release lever, forcing the striker to pierce a metal diaphragm, releasing compressed gas into the actuator. The actuator then extends, forcing the door open. As the door, with escape slide attached and girt secured to the floor, opens outward, tension is applied to the escape slide release cable to initiate the deployment sequence. Closing Press door stay release button and simultaneously pull door, using assist handles, towards the door frame. Pulling the interior control handle downwards lowers and locks the door. The locking indicators change from UNLOCKED to LOCKED. •

•

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A300 L1/R1 Courier Passenger/Crew Doors - Door Operation Modes General View of Controls/Mecha Controls/Mechanisms nisms


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A300/A310 Cargo Compartment Doors - General Description

General

The two limit switches of the door warning system, installed in each cargo compartment door and activated by the locking mechanism, send signals to the Electronic Centralized Aircraft Monitor (ECAM) system to indicate the locked/unlocked condition condition of the FWD and/or AFT cargo compartment door in the flight compartment. The red warning light, located near the operating handle, flashes when residual pressure is present in the FWD or AFT cargo compartment.

Location BULK, FWD and AFT cargo compartment doors are located on lower right fuselage side: FWD cargo compartment door is located in zone 811 between STA1454/FR20A and STA1729/FR25A. AFT cargo compartment door is located in zone 812 between STA3977/FR59A and STA4176/FR63A. BULK cargo compartment door is located in zone 813 between STA4362/FR67 and STA4468/FR69. The Main Deck Cargo (MDC) door (zone 835) is located on the upper LH side of the fuselage between STA1446/FR20 STA1446/FR20 and STA1817/FR33. STA1817/FR33. •

•

•

General Description FWD and AFT Cargo Compartment Doors The FWD and AFT cargo compartment doors are mechanically mechanically and structurally similar, differing only in size and in the number of hinge arms and locking units. They are of conventional monocoque construction and consist mainly of frames, longerons, stringers and inner and outer skin. The cargo compartment doors open outward and upward and are mechanically locked and unlocked by means of the operating handles. They open or close hydraulically by means of door actuators pressurized by the electrically driven pump of the yellow hydraulic system. An alternate procedure procedure permits operation of the FWD FWD and AFT cargo compartment doors by means of the hydraulic hand pump installed in the RH main wheel well. When the operating handle is in the locked position, the limit switch of the door control system, located in the lower LH edge of each cargo compartment door, inhibits a hydraulic operation of the door actuator. This limit switch is activated by the rotation of the torque shaft. When the door sill latches are lowered, the associated limit switches inhibit the closing of the FWD and AFT cargo compartment doors.


Main Deck Cargo (MDC) Door The MDC door structure is of conventional monocoque light alloy construction, consisting mainly of frames, longerons, stringers and inner and outer skins. The MDC door is manually locked/unlocked and hydraulically latched/ unlatched by means of a latching actuator. It opens outwards and upwards and closes by means of the door actuator. Both actuators are pressurized by the electrically driven pump of the yellow hydraulic system. An alternate procedure procedure permits manual manual operation of the MDC MDC door by means means of the hydraulic hand pump installed in the RH main wheel well. The limit switches of the door warning system installed in the MDC door supply a warning signal to the ECAM system, when the MDC door is not locked or correctly closed. NOTE: For detailed description of the MDC door refer 52-36-00. Data FWD Cargo Compartment Door Size : 2739 x 2385 mm (108 x 94 in.) Weight : 190 kg (419 lb.) AFT Cargo Compartment Door Size : 1848 x 24 2400 mm (72 x 94 94.5 in.) Weight : 139 kg (306 lb.) BULK Cargo Compartment Door Size : 1100 x 940 mm (43 x 37 in.) Weight : 32 kg (70.4 lb.)

Upper Deck Cargo Door Size : 3580 x 2560 (1 (141 x 101 in.) Wei Weight ght : 550 550 kg kg (12 (1212 12..5 lb. lb.))

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A300/A310 Forward Cargo Compartment Door - Component Location


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- - - - - - - - - - - - - - -- - - - - - - - - - - - - - -- - - - - - - - - - - - - -- - - - - - - - - - - - - - -- - - - - - - - - - - - - - -- - - - - FI N FUNCTI FUNCTI ONAL NAL DESI GNATI ON PANEL ZONE ACCESS ACCESS ATA DOOR REF REF - - - - - - - - - - - - - - -- - - - - - - - - - - - - - -- - - - - - - - - - - - - -- - - - - - - - - - - - - - -- - - - - - - - - - - - - - -- - - - - FWD CARGO COMPARTM PART MENT DOOR 132 811 52- 31- 11 HI NGE ARM ARM 132 811 52- 31- 11 ACTUA ACTUATO TOR R ATTACH ATTACHMENT ENT FI TTI NG 132 811 52- 31- 11 CARG CARGO DOOR LI NI NG 811AZ 132 811 52- 30- 13 CARG CARGO DOOR LI NI NG 811BZ 132 811 52- 30- 13 DRAI RAI N VALVES VALVES 132 52- 30- 00 DOOR SEAL 132 811 52- 30- 18 ACCESS ACCESS DOOR 811CR 52- 30- 00 ACCES ACCESS S PANEL PANEL 811DR 52- 30- 00 ACCES ACCESS S PANEL PANEL 811ER 52- 30- 00 ACCES ACCESS S PANEL PANEL 811AR 52- 30- 00 ACCES ACCESS S PANEL PANEL 811BR 52- 30- 00 HOI STI NG LUG 132 52- 31- 11 ROD 132 811AR 52- 30- 21 HANDLE SPRI NG UNI T 132 811DR, 811DR, 811ER 811ER 52- 30- 21 OPERATI PERATI NG HANDLE 132 811CR, 811CR, 52- 30- 21 TORQUE SHAFT SHAFT 132 811AR, 52- 30- 21 811BR LOCK LOCKII NG UNI T 132 811AR, 811AR, 52- 30- 21 811BR - SPRI SPRI NG UNI T 132 132 811AR 811AR, 52- 3030- 21 811BR - BELLCRA BELLCRAN NK 132 811AR, 811AR, 52- 30- 21 811BR - LI NK 132 811A 811AR R, 5252- 3030- 21 811BR - LOCKI NG HOOK 132 811AR, 52- 30- 21 811BR - I NDI CATO CATOR FLAG 132 811AR, 811AR, 52- 30- 21 811BR SWI TCH ACTUATI NG ASSEMBLY 132 811BR 52- 30- 21


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ATA 52 A300/A310



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A300 AFT Cargo Compartment Door - Component Location

- - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - -- - - - - - - - - - - - - FI N FUNCTI FUNCTI ONAL DESI GNATI ON PANEL ZONE ACCESS ACCESS ATA DOOR REF REF - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - -- - - - - - - - - - - - - AFT CARGO COMPARTMENT DOOR 152 812 52- 32- 11 HI NGE ARM ARM 152 812 52- 32- 11 ACTUA ACTUATO TOR R ATTACH ATTACHMENT ENT FI TTI NG 152 812 52- 32- 11 CARG CARGO DOOR LI NI NG 812BZ 152 812 52- 30- 13 CARG CARGO DOOR LI NI NG 812CZ 152 812 52- 30- 13 SWI TCH ACTUATI ACTUATI NG ASSEMBLY 152 812BR 52- 30- 21 DRAI RAI N VALVES VALVES 152 52- 30- 00 DOOR SEAL 152 812 52- 30- 18 ACCESS ACCESS DOOR 677FR 152 52- 30- 00 ACCES ACCESS S PANEL PANEL 812DR 152 52- 30- 00 ACCES ACCESS S PANEL PANEL 812ER 152 52- 30- 00 ACCES ACCESS S PANEL PANEL 812AR 152 52- 30- 00 ACCES ACCESS S PANEL PANEL 812BR 152 52- 30- 00 HOI STI NG LUG 152 812 52- 30- 00 ROD 152 812AR 52- 30- 21 HANDLE SPRI NG UNI T 152 812DR, 52- 30- 21 812ER OPERATI NG HANDLE 152 677FR 52- 30- 21 TORQ TORQUE SHAFT SHAFT 152 812AR, 812AR, 52- 30- 21 812BR LOCK LOCKII NG UNI T 152 812AR, 812AR, 52- 30- 21 812BR - SPRI SPRI NG UNI T 152 152 812AR 812AR,, 52- 30- 21 812BR - BELLCRA BELLCRAN NK 152 812AR, 812AR, 52- 30- 21 812BR - LI NK 152 152 812A 812AR R, 5252- 3030- 21 812BR - LOCKI NG HOOK 152 812AR, 812AR, 52- 30- 21 812BR - I NDI CATO CATOR FLAG 152 812AR, 812AR, 52- 30- 21


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-------------------------------------------------------------------------------FI N FUN CTI ONAL DESI G NATI O N PAN EL ZO NE AC CESS ATA DO OR REF -------------------------------------------------------------------------------AFT CARG O CO M PARTM ENT DO O R 152 812 52- 32- 11 HI NG E ARM 152 812 52-3 - 32-1 - 11 ACTUATO R ATTACHM ENT FI TTI NG 152 812 52- 32- 11 I NSULATI ON M AT 812AZ 152 812 52-3 - 30-1 - 13 SW I TCH AC TUATI NG ASSEM BLY 152 812BR 52- 30- 21 DRAI N VALVES 152 52-3052-30-00 00 D OO R SEAL 152 812 52- 30- 18 ACCESS DO O R 677FR 152 52-3 - 30- 00 ACCESS PAN EL 812DR 152 52- 30- 00 ACCESS PAN EL 812ER 152 52- 30-0 - 00 ACCESS PAN EL 812AR 152 52- 30-0 - 00 ACCESS PAN EL 812BR 152 52- 30-0 - 00 HO I STI NG LUG 152 812 52- 30- 00 RO D 152 812AR 52-3 - 30-2 - 21 HAN DLE SPRI NG UNI T 152 812D R, 52-3 - 30-2 - 21 812ER O PERATI NG HAN DLE 152 677FR 52- 30- 21 TORQ UE SHAFT 152 812AR, 52- 30- 21 812BR LOCKI NG UNI T 152 812AR, 52- 30-21 30-21 812BR - SPRI NG UNI T 152 812AR, 52- 30- 21 812BR - BELLCRANK 152 812AR, 52-3 - 30-2 - 21 812BR - LI NK 152 812AR, 52- 30- 21 812BR - LOCKI NG HO OK 152 812AR, 52-3 - 30-2 - 21 812BR - I NDI CATO R FLAG 152 812AR, 52-3052-30-21 21 812BR


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52-89 5289

ATA 52 A300/A310


-------------------------------------------------------------------------------FI N FUN CTI ONAL DESI G NATI O N PAN EL ZO NE AC CESS ATA DO OR REF -------------------------------------------------------------------------------AFT CARG O CO M PARTM ENT DO O R 152 812 52- 32- 11 HI NG E ARM 152 812 52-3 - 32-1 - 11 ACTUATO R ATTACHM ENT FI TTI NG 152 812 52- 32- 11 I NSULATI ON M AT 812AZ 152 812 52-3 - 30-1 - 13 SW I TCH AC TUATI NG ASSEM BLY 152 812BR 52- 30- 21 DRAI N VALVES 152 52-3052-30-00 00 D OO R SEAL 152 812 52- 30- 18 ACCESS DO O R 677FR 152 52-3 - 30- 00 ACCESS PAN EL 812DR 152 52- 30- 00 ACCESS PAN EL 812ER 152 52- 30-0 - 00 ACCESS PAN EL 812AR 152 52- 30-0 - 00 ACCESS PAN EL 812BR 152 52- 30-0 - 00 HO I STI NG LUG 152 812 52- 30- 00 RO D 152 812AR 52-3 - 30-2 - 21 HAN DLE SPRI NG UNI T 152 812D R, 52-3 - 30-2 - 21 812ER O PERATI NG HAN DLE 152 677FR 52- 30- 21 TORQ UE SHAFT 152 812AR, 52- 30- 21 812BR LOCKI NG UNI T 152 812AR, 52- 30-21 30-21 812BR - SPRI NG UNI T 152 812AR, 52- 30- 21 812BR - BELLCRANK 152 812AR, 52-3 - 30-2 - 21 812BR - LI NK 152 812AR, 52- 30- 21 812BR - LOCKI NG HO OK 152 812AR, 52-3 - 30-2 - 21 812BR - I NDI CATO R FLAG 152 812AR, 52-3052-30-21 21 812BR


52-90 5290

ATA 52 A300/A310



52-91 5291

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Doors Major Components Location General Description

Door Lining and Insulation Pre S.B. 25-2052/Some A310s The insulation on the FWD cargo compartment door comprises two insulation mats which are installed on the inside of the door by means of Velcro t ape, washers and quick-release fasteners. The AFT cargo compartment door has one insulation mat secured to t he door inner skin with Velcro tape, plastic press pins, washers and pins or quick-release fasteners.

The FWD and AFT cargo compartment doors comprise the following major components: Door Structure, Door Seal and Drain Valves The FWD and AFT cargo compartment doors are structurally similar, differing only in size and in number of hinge arms and door frames. The inner and outer skins are manufactured from fabricated sheet metal with integral vertical and horizontal edge members, frames and longitudinal beams. All parts are riveted riveted together to form a torsion-resistant torsion-resistant door. The door frames are milled to match the fuselage contour with the extended frames forming the hinge arms at the upper ends. The lower ends are machined to accommodate the door locking mechanisms.

Door Li Lining and Insulation Post S.B. 25-2052/Some A310s The FWD and AFT cargo door linings comprise two parts attached with Velcro tapes and quick-release fasteners on the inner skin of the FWD and AFT cargo compartment door. Each cargo door lining consists of a fire protection lining made of prepreg and a self-adhesive insulation foam mounted on the inside of the lining.

The outer skin of each cargo compartment door is provided with a recess for installation of the operating handle. This recess is covered by an access panel. Hoisting lugs are installed installed in the outer skin of each cargo compartment door to fasten the sling used for removal/installation of the door by means of a crane. The attachment fitting of the door actuator is located on the inside of the cargo compartment door near the top horizontal edge member. Fittings, attached to the forward and aft door frames, permit the installation of support struts during servicing procedures. Access panels panels and covers are provided provided at various various locations on the outer outer skin of each cargo compartment door to facilitate removal/installation, adjustment/test and/or servicing of the locking mechanism and hydraulic components. The door seal, made from special rubber hose, is attached on the inside of each cargo compartment door by means of retainers, screws and anchor nuts. When the cargo compartment door is closed, the door seal is pressed on a bulb section installed on the door frame of the fuselage, providing a pressure-tight interface. The FWD cargo compartment door is equipped with 11 flap-type drain valves and the AFT cargo compartment door with 5 flap-type drain valves. These valves are installed in the longeron near the outer skin. To allow liquid to escape, the drain valves are open on the ground. During flight the valves are closed by differential pressure.


52-92 5292

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Door Interlock Switch and Actuating Mechanism


52-93 5293

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Doors Door Door Locking Mechanism General Door Locking Mechanism The locking mechanism is installed in the lower section of each cargo compartment door and is actuated by the operating handle. This handle is retained in a recess of the door outer skin by means of a catch. The locking mechanism operates locking hooks, the interlock switch mechanism of the yellow hydraulic system and the limit switch of the door warning system. The operating handle is connected via a rod to the multi-sectioned torque shaft. The torque shaft is joined via flexible discs to the flanged bearings, located in fork ends of each door frame. The torque shaft levers, parts of the flanged bearings, connect the torque shaft to the locking units, each consisting of a spring unit, bellcrank, link, indicator flag and locking hook. A handle spring unit is installed b etween operating handle and door frame. This spring unit secures the operating handle in its respective position. The adjustable stop bolts are installed near the locking hooks to interrupt the closing movement when the lower edge of the cargo compartment door is flush with the fuselage contour.


52-94 5294

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Door - Locking Mechanism

A300

A310


52-95 5295

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Door Unlocking/Opening Operation Unlocking and Opening of FWD and AFT Cargo Compartment Doors When the pushbutton in the operating handle is pressed, a catch is released allowing the operating handle to move out slightly from its recess under the influence of the spring unit. A limit switch 16WS (FWD) or 34WS (AFT) actuated by the catch is opened to provide a signal to the ECAM system and, on the A300 and some A310s, illuminates the MASTER CAUTION lamp located on the main instrument panel. On some A310s, the signal illuminates the DOOR lamp on the Warning Light Display Panel. Simultaneously, a single chime aural warning sounds. As the operating han dle is pulled down to its maxi mum extent, the rod, mounted on the operating handle, rotates the torque shaft which, in turn, releases the locking elements. When the operating handle is fully extended, the handle spring unit moves overcenter, prohibiting the handle movement up to dead-center position. The maximum operating handle movement is limited to approximately 108 degrees by a stop located in the handle spring unit, at which position the locking hooks are clear of the fuselage fittings. The unlocking sequence occurs at the following approximate angles of operating handle movement:


11 degree degrees s

Spri Spring ng units units attach attached ed to leve leverr asse assemb mbli lies, es, whic which h are mounted on the torque shaft, transfer torque shaft rotation via bellcranks and links to locking hooks. 36 degr degree ees s Bell Bellcr cran anks ks and and lin links ks move move over overce cent nter er.. 44 degree degrees s Simu Simult ltane aneous ously ly,, loc lockin king g hooks hooks start start to clear clear fusel fuselage age fittings and indicator flags start to project from door. 102 102 degre degrees es Rota Rotati tion on of tor torque que sha shaft ft,, trans transfer ferre red d via a swit switch ch mechanism, operates limit switch 21MJ (FWD) or 22MJ (AFT) to energize the electro-mechanical selector valve 9MJ or 10MJ and permits hydraulic pressure to the door actuator when the selector of manual selector valve 15MJ (FWD) or 16MJ (AFT) is set to the OPEN position. With the FWD or AFT cargo compartment door unlocked, setting the selector to the OPEN position will route 28 V DC via the seriesconnected limit switches to the electro-mechanical selector valve 9MJ or 10MJ. Hydraulic pressure is then applied to the actuator, which extends to open the FWD or AFT cargo compartment door. When the door is fully open and locked, the actuator limit switch 7MJ (FWD) or 8MJ (AFT) closes and the green indicator light on the selector panel comes on. The selector is spring-loaded to the STOP position and, therefore, must be held in the OPEN position during opening of the FWD or AFT cargo compartment door until the green indicator light comes on.

52-96 5296

-

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Door Normal Operation Fairing

NOTE: A310 Shown


A300-600 identical to A310 Cargo Door System / A310 AFT Cargo Door Fairing not installed on A300-600 AFT Cargo Door

52-97 5297

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Doors Closing/Locking Operation General Description Closing and Locking of FWD and AFT Cargo Compartment Doors Setting the selector of manual selector valve 15MJ (FWD) or 16MJ (AFT) to the CLOSED position will cause the door actuator to retract and the FWD or AFT cargo compartment door to close. The green indicator light goes off. The FWD or AFT cargo compartment door is locked by returning the operating handle fully into its recess to latch it in position. During the movement of the operating handle, the sequence of events relative to the approximate position of the operating handle is as follows: 6 degree degrees s - Rotatio Rotation n of torque torque shaft shaft operates operates limit limit switch switch 21MJ (FWD) or 22MJ (AFT) to de-energize the electromechanical selector valve 9MJ or 10MJ and to shut off hydraulic pressure to the door actuator. 64 degrees degrees - Locking Locking hooks hooks engage engage with with fusel fuselage age lock fitting fittings s and and indicator flags are flush with cargo door surface. 72 degrees degrees - Links Links and and bellcran bellcranks ks move overcent overcenter. er. Overcent Overcenter er travel is limited by a stop. 97 degrees - Rotation Rotation of the torque shaft causes an operation in the switch actuating mechanism, activating limit switch 14WS (FWD) or 32WS (AFT) of the door warning system. NOTE: Limit switch switch may be activated activated when the roller of the switch switch lever contacts the fuselage stop, producing a force which positions the stop of the switch lever with the roller of the limit switch and loads the torsion spring mounted on the lever assy. If the FWD or AFT cargo compartment door is not correctly closed but the operating handle is locked in the recess, this force cannot be produced, because the roller of the switch lever is not in contact with the fuselage stop. The torsion spring therefore disengages the stop of the switch lever from the contact of limit switch.

When the operating handle of the FWD and/or AFT cargo compartment door is returned to, and locked in the recess, limit switches 16WS (FWD) and 34WS (AFT) are activated. A ground signal is fed via limit switches 14 WS and 16WS (FWD), 32WS and 34WS (AFT) to the ECAM system. When the cargo compartment doors are correctly closed and locked, the MASTER CAUTION lamp located on the main instrument panel (or the DOOR light on the Warning Light Display Panel on some A310s) goes off.

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52-98 5298

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Doors Normal Operation Fairing

NOTE: A310 Shown A300-600 identical to A310 Cargo Door System / A310 AFT Cargo Door Fairing not installed on A300-600 AFT Cargo Door


52-99 5299

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Doors Manual Opening/Closing with Hand Pump General Operation Opening and Closing of FWD and AFT Cargo Compartment Doors with Hand Pump NOTE: A second person person is required required to operate the the hand pump. In the event of non-availability of hydraulic power, the actuator can be extended and retracted by means of a hand pump located in the RH main wheel well. Prior to opening or closing the door when utilizing the hand pump, make certain that selector valves 9MJ (FWD) and 10MJ (AFT) in the RH main wheel well are closed. To open the door, depress pushbutton on operating handle and pull handle downwards to its stop. Make certain that all indicator flags are extended. Set the selector switch to the OPEN position and operate the hand pump until the cargo compartment door is fully open. NOTE: A considerable considerable increase in force is felt felt on the hand pump handle handle if the door actuator is in its extended, locked position. To close the door, set the selector switch to CLOSE and operate the hand pump until the door is closed. Lock the door by returning the operating handle to its recess and lock it in position. Make certain that all indicator flags are returned and flush with the door. NOTE: When closing closing the door from an intermediate intermediate position, position, the door will first move in the open direction until suffiecient pressure is built up in the sequence valve to reach the changeover position; the door will then close.

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Closing by Means of Hand Pump NOTE : A second person is required to operate the hand pump. •

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Opening by Means of Hand Pump

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NOTE: A second person person is required required to operate the the hand pump.

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If the red warning light CABIN CABIN PRESSURE flashes, stop any air supply to passenger compartment and wait until warning light goes off. Depress pushbutton on operating operating handle and pull pull operation operation handle downwards from recess. Check that all indicator flags are extended. Open access panel 122CR (FWD) or 152KR (AFT). Set lever of selector valve 9MJ (FWD) and 10MJ (AFT) located in RH main wheel well to manual operation. Turn selector to open position and hold. Operate hand pump located in RH main wheel well until the FWD or AFT cargo compartme nt door is fully open and the green indicator light comes on. Release selector. Selector returns to STOP position.

Open access panel 811CR (FWD) or 812CR (AFT). •

Make certain certain that that lever lever of selector valve 9MJ 9MJ (FWD) (FWD) and 10MJ (AFT) located in RH main wheel well is set to manual operation. Turn selector to CLOSE position and hold. Operate hand pump located in RH main wheel well until the FWD or AFT cargo compartmen t door is closed and the gree n indicator light goes off. Release selector. Selector returns to STOP position. Push operating handle upwards into the recess panel until it locks. Check that all indicator flags are retracted and flush with cargo door. Set lever of selector valve 9MJ (FWD) and 10MJ (AFT) located in RH main wheel well to normal position. Close access panels 811CR or 812CR and 122CR or 152KR. 152KR.

WARNING: STOP THE OPENING PROCEDURE IF THE RED WARNING LIGHT FLASHES. RESIDUAL PRESSURE COULD CAUSE THE DOOR TO OPEN WITH A SUDDEN FORCE AND INJURE PERSONS AND/OR DAMAGE THE AIRCRAFT.


52-100 52100

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Doors Manual Opening/Closing with Hand Pump


52-101 52101

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Doors - Auxiliary Operation with Crane/Sling Method - General Opening by Means of Crane

Closing by Means of Crane (Ref. Fig. 009)

NOTE : This procedure must be used in case of hydraulic system failure or in case of a defective door actuator.

NOTE: This procedure procedure must be used when the the FWD or AFT cargo cargo compartment door is in open position and cannot be closed in case of a defective door actuator or hydraulic system failure.

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Attach cargo door sling PN 98A52307529001 to crane. Peel off self adhesive patch (15) and remove hoisting lug (13) from lower hoist fitting (14) and re-install hoisting lug (13) with eye outwards. Open access panel 811CR (FWD) or 812CR (AFT).

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WARNING: STOP THE OPENING PROCEDURE IF THE RED WARNING LIGHT FLASHES. RESIDUAL PRESSURE COULD CAUSE THE CARGO COMPARTMENT DOOR TO OPEN WITH A SUDDEN FORCE AND INJURE PERSONS AND/OR DAMAGE THE AIRCRAFT. •

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If the red warning light CABIN PRESSURE flashes, stop any air supply to passenger compartment and wait until warning light goes off. Depress pushbutton on operating handle and pull operating handle downwards from recess. If door actuator is still still installed, proceed as follows: follows: Open access panel 122CR (FWD) or 152KR (AFT). Turn selector to OPEN position and hold. Attach fastener (12) of cargo door sling (11) to lower hoisting lug (14) and lift cargo compartment door by means of crane to fully open position. Release selector, if turned. Selector returns to STOP position. Close access panel 122CR (FWD) or 152KR (AFT). Install support struts PN 98A52307523000 on cargo cargo compartment compartment door. Replace defective door actuator (Ref. 52-33-18, P. Block 401).


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Attach cargo door sling (11) PN 98A523075290 01 to crane. Peel-off self adhesive patch (15) and remove lower hoisting lug (13) from hoist fitting (14) and re-install hoisting lug (13) with eye outwards. Attach fastener (12) (12) of cargo door sling (11) (11) to lower hoisting hoisting lug lug (14) and use crane until cargo door sling (11) is tight. Deactivate yellow hydraulic system (Ref. 29-10-00, P. Block 301). Disconnect hydraulic pipes from defective component and blank off open ends.

CAUTION: AFTER DISCONNECTION DISCONNECTION OF HYDRAULIC HYDRAULIC PIPES PIPES FROM FAILED COMPONENT, IT IS NECESSARY TO INSTALL PRESSURE BLANKS TO PIPE ENDS AND COMPONENT CONNECTIONS. •

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52-102 52102

Remove door actuator from cargo door fitting and from actuator beam of floor structure (Ref. 52-33-18, P. Block 401). Close cargo compartment door slowly by means of crane. Remove cargo door sling (11) from cargo compartment door. Remove lower hoisting lug (13) and re-install in hoist fitting (14) with eye inwards. Blank off hoisting point with self adhesive patch (15). Push cargo compartment door in fully closed position by means of man power and push operating handle upwards into the recess until it locks. Close access panel 811CR (FWD) or 812CR (AFT).

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Door Auxiliary Operation with Crane and Sling


52-103 52103

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Door - Opening/Closing with Electric Green Hydraulic Pumps

Opening and Closing Procedure

Closing by Means of Electric Hydraulic Pump

CAUTION: WHEN WIND SPEED SPEED IS EXPECTED EXPECTED TO EXCEED EXCEED 60 KNOTS: DO NO NOT T OPE OPEN N FWD FWD OR AF AFT T CAR CARGO GO COMPARTMENT DOOR. IF FWD FWD OR OR AFT AFT CARGO CARGO CO COMP MPART ARTME MENT NT DOOR DOOR IS OPEN, CLOSE IMMEDIATELY.

NOTE: Make certain that that door sill latches latches are raised raised (Ref. 52-35-00, 52-35-00, P. Block 1).

Opening by Means of Electric Hydraulic Pump Make certain that the aircraft electrical network is is energized and that electronics racks ventilation is correct. Open access panel 811CR (FWD) or 812CR (AFT).

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WARNING: WARNI NG: STOP THE OPENING PROCEDURE PROCEDURE IF THE RED WARNING LIGHT FLASHES. RESIDUAL PRESSURE COULD CAUSE THE CARGO COMPARTMENT DOOR TO OPEN WITH A SUDDEN FORCE AND INJURE PERSONS AND/OR DAMAGE THE AIRCRAFT. •

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(1)Make certain that the aircraft electrical network is energized and that electronics racks ventilation is correct. (2)Turn selector to CLOSE position and hold until the FWD or AFT cargo compartment door is closed and the green indicator light goes off. (3)Release selector. Selector returns to STOP position. (4)Push operating handle upwards into the recess until it locks. (5)Check that all indicator flags are retracted and flush with cargo door. (6)Close access panels panels 811CR 811CR or 812CR and 122CR 122CR or 152KR.

(3)If the red warning light CABIN PRESSURE flashes, stop any air supply to passenger compartment and wait until warning light goes off. (4)Depress pushbutton on operating handle and pull operation handle downwards from recess. (5)Check that all indicator flags are extended. (6)Open access panel 122CR (FWD) or 152KR (AFT). (7)Turn selector to OPEN OPEN position and hold until FWD or AFT AFT cargo compartment door is fully open and the green indicator light comes on. (8)Release selector. Selector returns to STOP position.


52-104 52104

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Door - Opening/Closing with Electric Green Hydraulic Pumps


52-105 52105

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Door Hydraulic System -General and Component FINs 1. Gener ener al The FWD and AFT car go compart ment doors doors are mechani cal l y l ocked or unl unl ocked and and hydrauli hydrauli cal l y open opened ed or cl osed. osed. The hydrauli hydrauli c syst emof FWD and and AFT cargo compar par t ment ent door door ( door door hydraul hydraul i c syst em) i s conne connect ct ed t o t he yell ow hydraul hydraul i c syst em. Operat perat i ng pressure i s 3000 3000 psi ( 206 206 bar) bar) . I f the el ectr i c pum pump f ai l s, t he syst emcan be pressuri zed by a hand hand pum pump. WARNI NG : THE HYDRAULI C SYSTEM I S FI LL ED WI TH HYDRAULI C FLUI D ACCORDI NG TO NSA NSA 307110 ( SKYDROL LD4, HYJ ET I V ETC).


- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --- - - - - - - - - - - - - - - - - - - - - - - - FI N FUNCTI ONAL DESI GNATI ON PANEL ZONE ACCESS ATA DOOR REF REF - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --- - - - - - - - - - - - - - - - - - - - - - - - 3054 CHECK VALVE 3055 CHECK VALVE 3060 MANI FOLD 148 148XZ 29- 13- 37 3083 ELECTRI C PUMP CHECK VALVE 148 148XZ 29- 24- 13 3084 ELECTRI ELECTRI C PUMP DELI VERY FI LTER 148 148XZ 148XZ 29- 24- 12 3085 HAND PUMP 148 148XZ 52- 33- 11 3086 PRESSUR PRESSURE RELI EF VA VALVE LVE 122 148XZ 148XZ 52- 33- 22 3125 BRK YELL OW POW ER ACCU 148 148RZ 32- 44- 11 3126 BRK YELL OW POW ER ACCU 148 148RZ 32- 44- 11 3389 CHECK VALVE 132 811 52- 33- 13 3390 CHECK VALVE 152 812 52- 33- 14 3732 FI LTER SCREEN 122 811 3733 FI LTER SCREEN 152 812 3734 SEQUENCE VALVE 132 811 52- 33- 24 3735 SEQUENCE VALVE 152 812 7MJ DOOR ACTUATOR 132 811 52- 33- 18 8MJ DOOR ACTUATOR 152 812 52- 33- 18 9MJ ELECTRO- MECHANI CAL SELECTOR VALVE 148 148XZ 52- 33- 12

52-106 52106

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Door Hydraulic System Component Location


52-107 52107

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Door Hydraulic Hydraulic System - General General Description NOTE: Designations Designations in brackets brackets refer to the AFT cargo compartment compartment door. For operation of the FWD (AFT) cargo compartment door, a service panel covered by access door is installed forward of each cargo compartment door. The service panel consists of a selector, which is spring-loaded when turned, and a green indicator light, which comes on when the internal locking mechanism of the door actuator 7MJ (8MJ) is engaged. The door actuator 7MJ (8MJ) is installed between the actuator attachmant fitting of the cargo compartment door and the actuator beam of the fuselage structure. The internal locking mechanism of the door actuator 7MJ (8MJ) retains the cargo compartment door in the open position when the piston rod of the door actuator 7MJ (8MJ) is fully extended. Setting the selector of control valve 15MJ (16MJ) to the OPEN or CLOSE position causes a pressurization of the cargo door hydraulic system by means of electric pump 25GX (normal operation). If hydraulic power is not available from electric pump 25GX, hand pump 3085, located in the RH main landing gear well, can be used to pressurize the door hydraulic system manual (operation).


The electro-mechanical selector valves 9MJ and 10MJ, installed in the RH main landing gear well, are each equipped with a lever standing in up position during normal operation. Both levers must be set downwards when manual operation is required. A check valve 305 5 (3054) is installe d in the hydraulic lin e to keep the system pressurized during manual operation and to separate hydraulic power from the hand pump line during normal operation. A sequence valv e 3734 (3735) is insta lled between con trol valve 15MJ (16MJ) and door actuator 7MJ (8MJ) to avoid an uncontrolled door movement caused by remaining air bubbles in the hydraulic system. When the selector of control valve 15MJ (16MJ) is set to CLOSE position, the sequence valve 3734 (3735) initially pressurizes the full actuator chamber and switches hydraulically and the piston rod of the door actuator starts to retract. Pressure relief valve 3086, installed at the pressure outlet of the hand pump 3085, reduces excess pressure in the hand pump line.

52-108 52108

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Door Hydraulic Hydraulic System Schematic


52-109 52109

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Door Hydraulic System - General General Description NOTE: Designations Designations in brackets brackets refer to the AFT cargo compartment compartment door. For operation of the FWD (AFT) cargo compartment door, a service panel covered by access door is installed forward of each cargo compartment door. The service panel consists of a selector, which is spring-loaded when turned, and a green indicator light, which comes on when the internal locking mechanism of the door actuator 7MJ (8MJ) is engaged. The door actuator 7MJ (8MJ) is installed between the actuator attachmant fitting of the cargo compartment door and the actuator beam of the fuselage structure. The internal locking mechanism of the door actuator 7MJ (8MJ) retains the cargo compartment door in the open position when the piston rod of the door actuator 7MJ (8MJ) is fully extended. Setting the selector of control valve 15MJ (16MJ) to the OPEN or CLOSE position causes a pressurization of the cargo door hydraulic system by means of electric pump 25GX (normal operation). If hydraulic power is not available from electric pump 25GX, hand pump 3085, located in the RH main landing gear well, can be used to pressurize the door hydraulic system manual (operation).


52-110 52110

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Doors Operating Operating Handle/Service Panel and Door Actuator


52-111 52111

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Doors Manual Manual Operation Hydraulic Operation If hydraulic power is not available from electric pump 25GX, hand pump 3085, located in the RH main landing gear well, can be used to pressurize the door hydraulic system manual (operation). The electro-mechanical selector valves 9MJ and 10MJ, installed in the RH main landing gear well, are each equipped with a lever standing in up position during normal operation. Both levers must be set downwards when manual operation is required. Pressure relief valve 3086, installed at the pressure outlet of the hand pump 3085, reduces excess pressure in the hand pump line.


52-112 52112

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Doors Manual Operation Hydraulic Components


52-113 52113

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Doors Hydraulic Door Actuator - Operation Modes Extension When hydraulic pressure is applied to the actuator at port A, the piston is forced along the internal bore of the actuator body exhausting the return hydraulic fluid through port B. Towards the end of the piston travel, the pawls pass over a lock and then force the locking piston against its spring in the locking cylinder. By returning the control handle which is spring-loaded to the STOP position, hydraulic pressure at port A is shut off and the fully extended ram retracts slightly until the pawls are held against the lock by spring pressure on the locking piston. The actuator is thus mechanically locked in its extended position.


Retraction When hydraulic pressure is applied to the actuator at port B, the locking piston is forced against its spring in the locking cylinder, allowing the pawls to pass over the lock, and the piston is forced along the internal base of the actuator body, exhausting the return hydraulic fluid through port A until the piston reaches the end of its travel and the actuator is in its fully retracted position.

52-114 52114

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Doors Hydraulic Door Actuator - Operation


52-115 52115

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Door Yellow Yell ow Hydra Hydraulic ulic Syst System em - Compo Component nent FINs Post

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --- - - - - - - - - - - - - - - - - - - FI N FUNCTI ONAL DESI GNATI ON PANEL ZONE ACCESS ATA DOOR REF - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --- - - - - - - - - - - - - - - - - - - 3054 CHECK VALVE 3055 CHECK VALVE 3060 MANI FOLD 148 148XZ 3083 CHECK VALVE 29- 24- 13 3084 FI LTER 148 148XZ 148XZ 29- 24- 12 3085 HAND PUMP 148 148XZ 52- 33- 11 3086 VA VALVELVE- PRESSURE RELI EF 122 148XZ 148XZ 52- 33- 22 3125 ACCU BRK YELL OW POW ER 148 148RZ 32- 44- 11 3126 ACCU BRK YELL OW POW ER 148 148RZ 32- 44- 11 3356 THERM THERMAL RELI EF VALV VALVE E 132 811 52- 33- 23 3357 THERM THERMAL RELI EF VALV VALVE E 152 812 52- 33- 23 3358 THERM THERMAL RELI EF VALV VALVE E 132 811 52- 33- 23 3359 THERM THERMAL RELI EF VALV VALVE E 152 812 52- 33- 23 3373 RESTRI CTOR 811 811 52- 33- 17 3375 RESTRI CTOR 812 812 52- 33- 17 3389 CHECK VALV VALVE E 132 811 52- 33- 13 3390 CHECK VALV VALVE E 152 812 52- 33- 14 7MJ DOOR ACTUATOR 132 811 52- 33- 18 8MJ DOOR ACTUATOR 152 812 52- 33- 18 9MJ ELECTRO MECHANI CAL SELECTOR VALVE 148 148XZ 52- 33- 12 10MJ ELECTRO MECHANI CAL SELECTOR VALVE 148 148XZ 52- 33- 12 15MJ CONTROL VALVE 122 811 52- 33- 15 16MJ CONTROL VALVE 152 812 52- 33- 15 25GX ELECTRI C PUMP 148 148XZ 29- 24- 11


402402- 405, 405, 407407- 409, 409, 424-426, 424-426, 428428- 428, 428, 443443- 443, 443, 446446- 449, 449, 453- 499, 499, - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --- - - - - - - - - - - - - - - - - - - - - - - - FI N FUNCTI ONAL DESI GNATI ON PANEL ZONE ACCESS ATA DOOR REF REF - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --- - - - - - - - - - - - - - - - - - - - - - - - 3054 CHECK VALVE 3055 CHECK VALVE 3060 MANI FOLD 148 148XZ 29- 13- 37 3083 ELECTRI C PUMP CHECK VALVE 148 148XZ 29- 24- 13 3084 ELECTRI ELECTRI C PUMP DELI VERY FI LTER 148 148XZ 148XZ 29- 24- 12 3085 HAND PUMP 148 148XZ 52- 33- 11 3086 PRESSUR PRESSURE RELI EF VA VALVE LVE 122 148XZ 148XZ 52- 33- 22 3125 BRK YELL OW POW ER ACCU 148 148RZ 32- 44- 11 3126 BRK YELL OW POW ER ACCU 148 148RZ 32- 44- 11 3373 RESTRI RESTRI CTOR/ CHECK VALV VALVE E 811 811 52- 33- 17 3375 RESTRI RESTRI CTOR/ CHECK VALV VALVE E 812 812 52- 33- 17 3389 CHECK VALVE 132 811 52- 33- 13 3390 CHECK VALVE 152 812 52- 33- 14 3732 FI LTER SCREEN 122 811 3733 FI LTER SCREEN 152 812 3734 SEQUENCE VALVE 132 811 52- 33- 24 3735 SEQUENCE VALVE 152 812 7MJ DOOR ACTUATOR 132 811 52- 33- 18 8MJ DOOR ACTUATOR 152 812 52- 33- 18 9MJ ELECTRO- MECHANI CAL SELECTOR VALVE 148 148XZ 52- 33- 12 10MJ ELECTRO- MECHANI CAL SELECTOR VALVE 148 148XZ 52- 33- 12 15MJ CONTROL VALVE 122 811 52- 33- 15 16MJ CONTROL VALVE 152 812 52- 33- 15 25GX ELECTRI C PUMP 148 148XZ 29- 24- 11

52-116 52116

SB SB 5252- 2006 2006

For A/C

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Door Yellow Yell ow Hydrau Hydraulic lic Syste System m - Compone Component nt Location Location


52-117 52117

ATA 52 A300/A310

A300 FWD and AFT Cargo Compartment Doors Component FIN Information 1. General The The el ectr i cal cont cont rol system of t he cargo compart part ment ent doors doors cont cont r ol s t he seque sequence nce of the hydrau hydraull i c operati operati on duri duri ng t he open openii ng and and cl osi ng proc edure of t he FWD, AFT and Mai n Deck Cargo Compart ment Door s. Each car go compart part ment ent door door has has a separat separat e cont cont rol ci rcui t . 2. Component ponent Locati on - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --FI N FUNCTI ONAL DESI GNATI ON PANEL ZONE ACCESS ATA DOOR REF - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --3MJ LI GHT- I NDI CATO CATOR 122 122CR 122CR 52- 35- 12 4MJ LI GHT- I NDI CATO CATOR 152 152KR 52- 35- 12 7MJ ACTUATOR- DOOR 132 52- 33- 18 8MJ ACTUATOR- DOOR 152 52- 33- 18 9MJ VA VALVELVE- ELECTRO- MECHANI CAL CAL SELECTOR 148 52- 33- 12 10MJ VA VALVELVE- ELECTRO ELECTRO- MECHANI CAL CAL SELECTOR 148 52- 33- 12 11MJ - 2 SWI TCH- LI MI T 922VU- 2 134 25-52- 00 12MJ - 1 SWI TCH- LI MI T 924VU- 1 134 25-52- 00 12MJ - 2 SWI TCH- LI MI T 924VU- 2 134 25-52- 00 12MJ - 3 SWI TCH- LI MI T 924VU- 3 134 25-52- 00 12MJ - 4 SWI TCH- LI MI T 924VU- 4 154 25-52- 00 15MJ VA VALVELVE- CONTROL 132 52- 33- 15 16MJ VA VALVELVE- CONTROL 152 52- 33- 15 21MJ SWI TCH- LI MI T 811 811BR 811BR 52- 35- 13 22MJ SWI TCH- LI MI T 812 812BR 812BR 52- 35- 13


52-118 52118

ATA 52 A300/A310

A300 FWD and AFT Cargo Compartment Doors - Component Location

Some A300s


52-119 52119

ATA 52 A300/A310

A310 FWD and AFT Cargo Compartment Doors Door Electrical Control System

1. Gener ener al The The Cargo Compar par t ment ent Door el ectr i cal cont cont rol system provi des des el ectr i cal pow power vi a a num number ber of of seri es conne connected cted l i mi t swi t ches ches t o an el ectr omechan echanii cal ope operr ated l i mi t select or val ve and and hence hence t he door door actuator s t o cont r ol t he openi ng and cl osi ng of t he FWD and AFT Cargo Com part ment Doors . Wi t h t he Car Car go Com Compart ment Door unl ocked, ocked, sel ect i on of t he door door sel ector swi t ch ( cont cont rol val ve) on t he cont cont rol panel panel to t he OPEN PEN/ CLO CLOSED SED posi posi t i on wi l l energize energize the ci rcui t wi th 28V 28VDC which i s als o routed to the Yel Yel l ow Hydraul ydraul i c syst empump cont cont actor . The The hydraul hydraul i c el ectr o-mechan echanii cal sel ector valve i s energi energi zed t hrough hrough cont cont acts of t he seri es conne connected cted door door si l l l atches and and t he door door l ocking shaf shaf t l i mi t swi t ch t o operat operat e t he door door actuators and and t he door door wi l l open. open. When hen t he door door i s f ul l y open open and and l ocked, ocked, the door door actuator swi t ch cont cont acts acts wi l l cl ose to i l l um i nat nat e t he green green i ndi ndi cator l amp. The The door door si l l l atches must be be l owered when hen cargo i s bei bei ng l oaded oaded or unl unl oade oaded d whi ch i nvol nvol ves t he actuati on of l i mi t swi t ches ches wi t hi n t he door door cont cont rol system ( Ref. AM AMM 2525- 5252- 00) 00) t o open open t he cont cont acts of t he seri es conn connec ected ted l i mi t swi tches. tches. Thi Thi s, therefore, serves serves as a safety devi devi ce to prevent prevent the doors doors bei bei ng cl osed when hen t he door door si l l l atches are l owered by di sconnecti sconnecti ng t he 28V 28VDC pow power suppl suppl y t o t he el ectr o-mechan echanii cal sel ector val val ve. The The door door i s also preve prevented nted f romcl osing by the door door l ocki ocki ng shaf shaf t l i mi t swi t ch i f the compart part ment ent doo doorr ope operat rat i ng hand handll e i s not not i n t he f ul l y unl unl ocked ocked po s i t i o n. po n.


** ON A/ C

415415- 415,

The The Upper pper Deck Cargo ( UDC) Door syst emcontr ol provi des des el ectr i cal pow power t o operat operat e sel ector cont cont rol val ve 32M 32MJ (syst emsel ector valve - FW FWD Cargo Cargo Door oor or Upper pper Cargo Door) and and el ectr o-mechan echanii cal sel ector contr contr ol val ves 34M 34MJ ( servi ng t he door door l ocking actuator) and and 33M 33MJ (s ervi ng t he door door actuator) . The The door door i s cont cont rol l ed vi a pushb pushbutt utt on swi t ches ches ( P/ BSW ) and and moni oni t ored by i ndi ndi cator l i ght ght s l ocat ocat ed on door door cont cont rol panel panel 913 913V VU. Li mi t swi t ches, ches, di odes odes and and rel ays provi provi de f or ci rcui t swi tchi ng and and safety i nterl ocki ocki ng duri duri ng operati operati on of the door door . -------------------------------------------------------------------------------FI N FUNCTI ONAL DESI GNATI ON PANEL ZONE ACCESS ATA DOOR REF -------------------------------------------------------------------------------3MJ 4MJ 7MJ 8MJ 9MJ 10MJ 11MJ - 1

LI GHT- I NDI CATO CATOR LI GHT- I NDI CATO CATOR ACTUATOR- DOOR ACTUATOR- DOOR VA VALVELVE- ELECTRO ELECTRO- MECHANI CAL CAL SELECTOR VA VALVELVE- ELECTRO ELECTRO- MECHANI CAL CAL SELECTOR SWI TCH- LI MI T

11MJ - 2

SWI TCH- LI MI T

12MJ - 1

SWI TCH- LI MI T

12MJ - 2

SWI TCH- LI MI T

12MJ - 3

SWI TCH- LI MI T

12MJ - 4

SWI TCH- LI MI T

15MJ 16MJ 17MJ 18MJ 21MJ 22MJ

VA VALVELVE- CONTROL VA VALVELVE- CONTROL DI ODE DI ODE SWI TCH- LI MI T SWI TCH- LI MI T

52-120 52120

122 152 132 152 148 148 922 VU- 1 922 VU- 2 924 VU- 1 924 VU- 2 924 VU- 2 924 VU- 3

122CR 122CR 677DR

52- 35- 12 52- 35- 12 52- 33- 18 52- 33- 18 52- 33- 12 52- 33- 12

134

25-52- 00

134

25-52- 00

134

25-52- 00

134

25-52- 00

134

25-52- 00

154 132 152 122 122

25-52- 00 52- 33- 15 52- 33- 15

811 812

52-35- 13 52-35- 13

ATA 52 A300/A310

A310 FWD and AFT Cargo Compartment Doors Door Electrical Control System - Component Location


52-121 52121

ATA 52 A300/A310

A310 FWD and AFT Cargo Compartment Doors Door Electrical Control System - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --- - - - - FI N FUNCTI ONAL DESI GNATI ON PANEL ZONE ACCESS ATA DOOR REF - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --- - - - - 3MJ 4MJ 7MJ 8MJ 9MJ 10MJ 11MJ - 1

LI GHT- I NDI CATO CATOR LI GHT- I NDI CATO CATOR ACTUATOR- DOOR ACTUATOR- DOOR VA VALVELVE- ELECTRO ELECTRO- MECHANI CAL CAL SELECTOR VA VALVELVE- ELECTRO ELECTRO- MECHANI CAL CAL SELECTOR SWI TCH TCH- LI MI T

11MJ - 2

SWI TCH TCH- LI MI T

12MJ - 1


12MJ - 2


12MJ - 3


12MJ - 4


15MJ 16MJ 17MJ 18MJ 21MJ 22MJ

VA VALVELVE- CONTROL VA VALVELVE- CONTROL DI ODE DI ODE SWI TCH- LI MI T SWI TCH- LI MI T


122 152 132 152 148 148 922 VU- 1 922 VU- 2 924 VU- 1 924 VU- 2 924 VU- 2 924 VU- 3

122CR 122CR 677DR

52- 35- 12 52- 35- 12 52- 33- 18 52- 33- 18 52- 33- 12 52- 33- 12

134

25-52- 00

134

25-52- 00

134

25-52- 00

134

25-52- 00

134

25-52- 00

154 132 152 122 122

25-52- 00 52- 33- 15 52- 33- 15

811 812

52-35- 13 52-35- 13

52-122 52122

ATA 52 A300/A310

A310 FWD and AFT Cargo Compartment Doors Door Electrical Control Switches - Component Location


52-123 52123

ATA 52 A300/A310

Some A300/A310 FWD Cargo Compartment Door Door Control System Components Description The series connected limit switches which control the operation of the electro-mechanical selector valves are operated as follows: •

11MJ-1 and 11MJ-2 by the YZ-latches of the manual door sill latches of the FWD Cargo Compartment 12MJ-1 and 12MJ-2 by the YZ-latches of the automatic door sill latches of the FWD Cargo Compartment.

•

12MJ-3 and 12MJ-4 by the YZ-latches of the automatic door sill latches of the AFT Cargo Compartment.

Door locking shaft limit switch 21MJ is installed in the FWD and AFT Cargo Compartment Doors respectively respectively and are operated by the door locking mechanism. Limit switch 7MJ (FWD) is installed in the door actuator mechanism and close to illuminate the green indicator lamps 3MJ (FWD) when the Cargo Compartment Door is fully open and locked. The electro-mechanical selector valve 9MJ (FWD) is located in the RH main wheel compartment and when energized, extend and retract the door actuator to open and close the Cargo Compartment Door.


52-124 52124

ATA 52 A300/A310

Some A300/A310 FWD Cargo Compartment Door Electrical Door Control System

* *

*Some A300/A310 MTT M540000/R3.4 16AUG01 For Training Purposes Only

52-125 52125

ATA 52 A300/A310



•




52-126 52126

ATA 52 A300/A310

Some A300/A310 FWD Cargo Compartment Door Electrical Electrical Door Control System


52-127 52127

ATA 52 A300/A310



•




52-128 52128

ATA 52 A300/A310

A300/A310 AFT Cargo Compartment Door Electrical Electrical Door Control System


52-129 52129

ATA 52 A300/A310

Some A310 FWD and AFT Cargo Compartment Doors Electrical Control System Operational Mode NOTE: Components identificat identifications ions in parenthesis parenthesis are for FWD cargo cargo door electrical control system. FWD Cargo Compartment Door has one additional door sill latch (11MJ). Opening - FWD/AFT Cargo Compartment Door Fully pulling out operating handle makes door locking shaft limit switch contacts 22MJ (21MJ) removing inhibit from electro-mechanical selector valve 10MJ (9MJ). Manually operating control valve 16MJ (15MJ) starts YELLOW system pump motor 25GX through circuit breaker 7GX, 601PP FLT/GND busbar, diode 18MJ (17MJ) and contactor 24GX. Electro-mechanical selector valve 10MJ (9MJ) energizes, pressurizing door actuator. When door is fully open, limit switch 8MJ (7MJ) makes circuit to illuminate green lamp 4MJ (3MJ) "DOOR OPEN AND LOCKED". Safety procedure during cargo loading requires door sill latches to be lowered, opening circuit to electro-selector valve 10MJ (9MJ) and preventing door closure. **ON A/C 415-415 NOTE: The system is supplied supplied from 28V bus 601PP 601PP via circuit breaker breaker 7GX.


52-130 52130

ATA 52 A300/A310

Some A310 FWD and AFT Cargo Compartment Doors Electrical Control System - Schematic Diagram


52-131 52131

ATA 52 A300/A310

Some A310 FWD and AFT Cargo Compartment Doors Electrical Control System Operational Mode Operation Closing - FWD/AFT Cargo Compartment Door With door sill latches raised and control valve 16MJ (15MJ) set to closed position, YELLOW system pump motor 25GX starts through circuit breaker 7GX, 601PP FLT/GND busbar, diode 18MJ (17MJ) and contactor 24GX. Electro-mechanical selector valve 10MJ (9MJ) energizes, pressurizing door actuator to close door and open limit switch 7MJ (8MJ) extinguishing indicator light 4MJ (3MJ). Stowing locking handle opens limit switch 21MJ (22MJ) inhibiting further solenoid operation.


52-132 52132

ATA 52 A300/A310

Some A310 FWD and AFT Cargo Compartment Doors Electrical Electrical Control System - Schematic Diagram TO THE UPPER DECK CARGO COMPARTMENT DOOR OR MDCC (MAIN DECK CARGO COMPARTMENT) DOOR SYSTEM


52-133 52133

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Doors Door Actuator Safety Locks B. I nstal l ati on of Saf Saf ety Lock ( PN 98A5 98A523 2307 0762 6280 8000 00))

Sp Speci eci al al Precau Precauti Precauti ti on ons s 1. General Thi s procedure must be car r i ed out when t he FWD and/ and/ or AFT car go compart part ment ent door door ( r efer red as t o cargo door) door) remai ns f ul l y open open duri duri ng t he mai ntenance procedure. The The approp appropri ri ate safet y l ock f or the part part i cul cul ar door door actuator actuator must be i nstal l ed when hen t he door door actuator remai ns conne connect ct ed t o t he cargo door. door. The The suppo support rt st rut s must be i nstal l ed bef bef ore t he door door actuat actuat or i s dis conne connected cted f rom the cargo door door or f rom t he f usel usel age age st ructure.

( R ef ef . F i g. 3 01 01 ) NOTE : The The saf ety l ock PN 98A5 98A523 2307 0762 6280 8000 00 i s appl appl i cabl e f or door door actuat ors of vendor s FEI NMECHANI SCHE WERKE MAI NZ and AI R EQUI EQUI PMENT. ( 1)Rem 1)Remove knurl knurl ed bol bol t s ( 2) and and open open appl appl i cabl cabl e safet y l ock ( 1). ( 2 ) P o s i t i o n s a f e t y l o ck ck ( 1 ) t o t h e p i s t o n o f d oo oo r a ct ct u a t o r ( 3 ) a nd nd c l o se se s a f e t y l o ck ck ( 1 ) . ( 3 ) I n s t a l l k nu nu r l e d b ol ol t s ( 2 ) a nd nd t i gh t e n t o s e cu cu r e t h e s a f e t y l o ck ck ( 1 ) .

2. Equi Equi pment and Mater i al s ----------------- ------------------- ------------------- ------------------- -----I TEM DESI GNATI ATI ON ----------------- ------------------- ------------------- ------------------- -----A. Access ccess Platf orm, 2.7 to 3.0 m( 9.0 to 10. 0 f t. ) B. N N// A A FED FEDEX EX C. 98A52307628000 ((FEDEX FEDEX TO TOO OL) L) Saf et y Lock - FWD and AFT Cargo Com Compart ment Door Act Act uat uat ors ( Act uat uat or of Vend Vendors ors FEI NMECHANI SCHE WERKE MAI NZ and AI R EQUI PMENT) D. 98A52307523000 ((FEDEX FEDEX TO TOO OL) L) Suppor Suppor t St r ut s - FWD and AFT Cargo Compar t ment Door s Door Ref Ref erenced Procedur Procedur es - 2424- 4141- 00, 00, P. Bl ock 301 301 - 52-30- 00, P. Bl ock 1

C. Rem oval of Saf et y Lock ( PN 98A52307 98A523075670 567001 01 or PN 5230762800 52307628000) 0) ( 1)Make 1)Make sure t hat hat cargo compart part ment ent door door i s f ul l y open opened ed hydrauli hydrauli cal l y ( R ef ef . 5 22- 3 00- 0 0, 0, P . Bl o ck ck 1 ) . ( 2)Rem 2)Remove knurl knurl ed bol bol t s ( 2), open open saf ety l ock ( 1) and and remove i t f rom pi st on of door door actuator actuator ( 3). ( 3 ) C l o s e s a f e t y l o ck ck ( 1 ) a nd nd i n s t a l l kn kn ur ur l e d b ol ol t s ( 2 ) . ( 4)Cl ose and l ock t he cargo compart ment door door corr ectl y ( Ref Ref . 5252- 3030- 00, 00, P . Bl o ck ck 1 ) , i f n ec ec es es s a r y .

AC Exter nal nal Power Contr Contr ol Car Car go Com part ment Doors

3. Procedure Procedure A. J ob Set Set - Up (1)Posit i on acce access ss platf orm. ( 2)Con 2)Conne nect ct t he ai rcr aft groun ground d pow power uni uni t and and energi energi ze the ai rcr aft el ectr i cal netw network ork (Ref. 2424- 4141- 00, 00, P. Bl ock 301). 301). (3)Make ake cert cert ain that electronics racks racks ven venti l ati on i s corr corr ect. ect. ( 4)Bef ore FWD or AFT car go door i s t o be opened proceed as f ol l ows: W W AR ARN NII N NG G :: STO STOP P TH THE EO OPEN PENII N NG G PR PRO OCED CEDUR URE E II F F TH THE E RED RED W W AR ARN NII N NG G LI LI G GH HT T FLASH FLASHES. ES. RESI RESI DU DUAL AL PRESSU PRESSURE RE CO COULD ULD CAU CAUSE SE THE THE DO DOO OR R TO TO O OP PEN EN W W II TH TH A A SUD SUD DEN DEN FORCE FORCE AN AND D II NJ NJURE URE PERSON PERSONS S AND AND// OR OR DAM DAM AGE AGE THE THE AI AI RCRAFT. RCRAFT. ( a) Open t he access panel panel 811C 811CR R or 677CR and make sur e t hat r ed warni ng l i ght ght CABI N PRES PRESSU SURE i s not f l ashed. ashed. (b) I f red warni ng l i ght ght CABI N PRESSU ESSURE i s f l ashi ashi ng, ng, stop any any ai r supply supply t o passeng passenger er compart ment ent and and wai t unt unt i l warni ng l i ght ght st ops ops f l ashi ng befor e you open open door. ( 5)Ful l y open open FWD or AFT cargo door door ( Ref Ref . 52- 3030- 00, 00, P. Bl ock 1).


52-134 52134

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Doors Door Door Actuator Safety Locks


52-135 52135

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Doors Door Safety Support Struts D. I nstal l ati on of Sup Suppo port rt Str uts ( PN 98A 98A5230 523075 7523 2300 000) 0) (Ref (Ref . Fi g. 302) 302) ( 1)Posi t i on l ower end end of suppo support rt st rut (15) (15) t o t he f usel usel age age f rame and and i nstal l the pip pin (16) i n att achm achm ent ent hol hol e. (2) Loose Loosen n j amnut amnut s (13) to adj adj ust l ength ength of suppo support rt struts. (3)Posi ti on f ork end end of suppo support rt strut ( 12) 12) to att achm achment ent f i t ti ng (10). ( 4)Turn 4)Turn spi ndl ndl e ( 14) 14) unt unt i l hol hol es of f ork end end ( 12) 12) and and att achm achment ent f i t t i ng ( 1 0) 0) al i gn. (5)I nstall pi p pin (11) ti ghten j amnuts amnuts (13) to secure secure con connecti necti on of support support st r ut and f ul l y opened opened cargo compart ment door door . E. Rem oval of Support Support Str ut s ( PN 98A5230753 5230753000) 000) ( 1)Make sure t hat hat cargo compart part ment ent doo doorr i s f ull y open opened ed hydrau hydraull i cal l y (Ref. 5252- 3030- 00, 00, P. Bl ock 1). ( 2)Pull on ri ng of pi p pi n ( 11) 11) and and remove i t to rel ease ease conne connecti cti on of support support st r ut and cargo compart ment door door . ( 3)Rem 3)Remove f ork end end of suppo support rt str ut ( 12) 12) f rom att achm achment ent f i t t i ng ( 10) 10) . ( 4)Pull on ri ng of pi p pi n ( 16) 16) and and remove i t together together wi t h suppo support rt str ut (15) f rom f usel usel age age f rame. ( 5)I f nece necessary, ssary, cl ose and and l ock cargo compart part ment ent doo doorr ( Ref. 5252- 3030- 00, 00, P. Bl ock ock 1). F. Cl oseose- Up ( 1)Make cert ai n t hat hat work area i s cl ean ean and and cl ear of tool s and and mi scel l aneou aneous s i t ems of equi equi pment. (2)De(2)De- energize energize the air craft el ectr ectr i cal cal netw network ork and and disconne disconnect ct electr i cal ground ground pow power uni uni t ( Ref. 2424- 4141- 00, 00, P. Bl ock 301). 301). ( 3)Remove access pl atf orm.


52-136 52136

ATA 52 A300/A310

A300/A310 FWD and AFT Cargo Compartment Doors Door Safety Support Struts Support Strut Part Number 98A52307523000 Located in the FedEx Aircraft Maintenance Production Control System Tooling Catalog

NOTE

Two struts required on Forward and Aft Ends of Door Assembly for Safety Support of Door during Maintenance Operations


52-137 52137

ATA 52 A300/A310

A300/A310 BULK Cargo Compartment Door System - General

G General eneral The BULK cargo compart ment door door i s l ocated on t he l ower RH si de of the f usel age, bet ween STA4362 STA4362(( FR67) FR67) and STA4468 STA4468(( FR69) FR69) and provi des access t o t he BULK car go compart ment. The The door door i s of t he pl ug t ype and and open opens s i nwards, hi ngi ngi ng abou aboutt i t s uppe upperr edge edge.. When hen cl osed osed and and l ocked ocked,, the out out er surf ace of t he door door i s f l ush wi t h t he f usel usel age age ski n. The The door door can be open opened ed,, cl osed and and l ocked ocked f r om e i t he r i ns i d e o r o ut ut s i d e t h e a i r c r a f t .


Bul k Cargo Compar t ment Door Door Components - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --- - - FI N FUNCTI ONAL DESI GNATI ON PANEL ZONE ACCESS ATA DOOR REF . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --- - - BULK CARGO COMPARTMENT DOOR 162 813 52- 34- 00 HI NGE ARM 162 813 52-34- 11 HI NGE ARM ARM BRACK BRACKET 162 813 52- 34- 11 DAMPER 162 813 52- 34- 11 I NSULATI NSULATI NG MAT 162 813 52- 34- 00 I NTERNAL HANDLE 162 813 52- 34- 21 SNAP HOOK ASSY 162 813 52- 34- 41 SPRI NG UNI T 162 813 52- 34- 41 LATCH ASSEMBLY 162 813 52- 34- 00 LOWER EDGE MEMBER 162 813 52- 34- 00 TORQUE SHAFT 162 813 52- 34- 21 I NNER SKI N 162 813 52-34- 00 CORNER SECTI ON 162 813 52- 34- 00 BARREL LOCK 162 813 52- 34- 00 BEAM BEAM 162 813 52-34- 00 FORMER 162 813 52- 34- 00 SI DE EDGE MEMBER 162 813 52- 34- 11 OUTER UTER SKI N 162 813 52- 34- 00 DOOR STOP FI TTI NG 162 813 52- 34- 31 SEAL SEAL RETAI NER NER 162 813 52- 34- 00 SEALI NG SECTI ON 162 813 52- 34- 11

52-138 52138

ATA 52 A300/A310

A300/A310 BULK Cargo Compartment Door System - General Arrangement


52-139 52139

ATA 52 A300/A310

A300/A310 BULK Cargo Compartment Door System - General

Structure The door structure comprises aluminum-alloy components riveted together. Major components are beams, edge members and an outer skin. Sealant is used during manufacture to ensure a pressure-tight seal at all joints and rivet holes.

Sealing The door seal is a rubber extrusion, with equally spaced pressurization holes, secured to the door by retainers and screws. When the door is closed, the seal is compressed by a sealing section on the fuselage frame and inflated by cabin air pressure to form a pressure-tight seal.

Fittings Adjustable stop fittings, with mating stop fittings on the fuselage door frame, transfer pressurization loads to the aircraft structure. Barrel locks, protruding from the forward and aft edge members, form part of the door locking mechanism. When the door is in the closed position, the barrel locks locate on latch spigots attached to the fuselage door frame structure. The aft barrel lock trips the limit switch, attached to the aft fuselage door frame, giving a door locked indication in the flight compartment.

Drainage On the lower edge member, member, between between seal and outer skin, a drain valve is installed. The drain valve is a flap assembly which covers a 10 mm (0.39 in.) dia. hole in the lower edge member and is protected by a retaining plate. At ground level, the drain valve is open to allow liquid to escape. During flight, the drain valve is closed by differential pressure.

•

•

•

•

•

•

•

Insulation Attached to the interior of the door is an insulation mat retained in position by Velcro tape. The mat is filled with a Skydrol-resistant material which is sealed inside a Hypalon cover. •


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ATA 52 A300/A310

A300/A310 BULK Cargo Compartment Door System - General Features


52-141 52141

ATA 52 A300/A310

A300/A310 BULK Cargo Compartment Door System Locking and Latching Mechanism - General General

Operation

Locking Mechanism The locking mechanism is mounted in the lower half of the door and is controlled by the door handles. When the exterior door handle is released and moved to the OPEN position, the interior door handle moves simultaneously to the OPEN position. With the exterior door handle secured in its recess, the interior door handle is free to be moved, independently, from the LOCKED to the OPEN position. In the locked position the interior handle is horizontal. To open the door the handle must be rotated clockwise a quarter turn to the vertical position. When either door handle is moved, rotation of the torque shaft is achieved through an operating rod. The rotation of the torque shaft, with the door in the closed position, secures the barrel locks on to the latch spigots. With the door in the fully open position, and the door handles in the CLOSED/LOCKED condition, the latch assembly will engage the latch arrester, securing the door in the fully open position. With the door handles in the CLOSED/LOCKED CLOSED/LOCKED position, a spring rod cylinder retains the complete locking mechanism in a positive locked condition

The exterior door handle is released by pressing the pushbutton mounted in the door handle. The door is opened by moving either door handle to the OPEN position. With movement of the door handles, an operating rod rotates the barrel locks, via the torque shaft. The barrel locks release the latch spigots mounted on the fuselage door frame, and the door is free to open inboard. The door is opened partially, to clear the latch spigots, and the exterior door handle returned to the CLOSED and recessed position. When the door is fully open, the latch assembly locates the latch arrester, mounted on the ceiling of the BULK cargo compartment. During opening, the weight of the door is compensated for by the balance mechanism. The door will remain locked fully open with the door handles in the CLOSED/LOCKED position and the latch assembly engaged in the latch arrester. Movement of the door handles to the OPEN position disengages the latch assembly and initiates a downward swing of the door, controlled by the balance mechanism. After closure of the door the exte rior door handle must be retur ned to the recessed position.


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ATA 52 A300/A310

A300/A310 BULK Cargo Compartment Door System Locking and Latching Mechanism - Component Location Locking Mechanism

Latch Assembly


52-143 52143

ATA 52 A300/A310

A300/A310 BULK Cargo Compartment Door Door Seal and Sealing - General General Sealing The door seal is a rubber extrusion, with equally spaced pressurization holes, secured to the door by retainers and screws.


When the door is closed, the seal is compressed by a sealing section on the fuselage frame and inflated by Cabin Compartment pressurized air pressure to form a pressure-tight seal.

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ATA 52 A300/A310

A300/A310 BULK Cargo Compartment Door Door Seal - Seal Installation


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ATA 52 A300/A310

A300/A310 BULK Cargo Compartment Door Balance Mechanism and Hinge Pins - General Balance Mechanism The balance mechanism is mounted in the ceiling of the BULK cargo compartment in line with STA4415(FR68), and is attached to the interior of the door via leaf springs. Some A300s have either two or three leaf spring for the balance mechanism which depends on the aircraft effectivity code. The A310 aircraft have two leaf springs installed on the airframe for the balance mechanism. Two hinge arms attach the door to the fuselage structure and door assembly. Each arm is attached to the airframe structure with a hinge pin and hardware lock bolts/washers.


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ATA 52 A300/A310

A300/A310 BULK Cargo Compartment Door Hinge Pins and Balance Mechanism - Component View A300 / Some A310 Two Leaf Springs Balance Mechanism Connection

Door Hinge Pin


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ATA 52 A300/A310

A300/A310 Main Deck Cargo Compartment - General Description and FIN

G Gene eneral ener ral al The Mai n Deck Car Car go ( MDC) door door i nst al l ed i n t he Mai n Deck Car Car go Com Compart ment i n t he L H si de of t he f usel age betwe between en STA1 STA144 446/ 6/ FR20 FR20 and and STA1817/FR27 1817/FR27 perm permi t s l oadi oadi ng and unloading nloading of of f rei ght uni uni ts. The MD MDC door door opens opens outwards and upwards and pr ovi des a cl earance wi dth of 3. 58 m ( 141 i n.) and a cl earanc earance e hei hei ght of 2. 2. 56 m( 101 101 i n.) . The car go door wei ght ght i s appr appr ox. 550 kg ( 1212. 5 l b). The mai n deck c argo ( MDC) door door hydr hydr aul i c syst emi s connect connect ed t o t he yel l ow hydr hydr aul i c ci rcui t, upst upst reamf rom the pressure pressure l i ne of of the FWD cargo cargo com compart part ment ent door. door. I t i s possi bl e t o operat operat e t he FW D cargo com part part ment ent door door i n the l ower deck deck area and and t he MDC door door at t he same t i me. The MDC door i s mechani echani cal l y/ hydr hydr aul i cal l y l ocked or unl ocked and hydr hydr aul i cal l y opened opened or cl osed. The The MDC door door can be be open opened ed to 70° 70° or 145° 145° posi posi t i ons. ons. I f t he el ectr i c pum pump i s not not avai avai l abl abl e, t he MDC doo doorr hydraul i c syst emcan be pressur pressur i zed by by t he han hand d pum pump. I n the event event of hydrauli hydrauli c syst emf ai l ure t he MDC doo doorr can be be open opened ed and and cl cl osed usi ng a crane. crane. WARNI NG:

WHEN THE MDC DOOR I S OPENED BUT CARGO I S NOT TO BE LOADED, SECURE FUSELAGE OPENI NG WI TH THE MDC DOOR NET.

S Sy ystemD stemDescri escri p pti ti on on The mai n deck cargo ( MDC) door door st r uctur e i s of a conventi conventi onal onal monocoqu onocoque e l i ght ght al l oy const const ruct i on and and consi consi st s mai nl y of of f rames, l onge ongerons, rons, st ri ngers ngers and out out er and and i nner nner ski n. A pressure pressure seal f i t t ed t o the per per i phery phery of t he MDC door door ensures ensures pressur pressur e- t i ght ght cl osi ng of t he MDC door and and preven preventt s water f rom ent ent eri ng t he f usel age. age. MDC door door i nsul nsul ati on and and i nter nal nal door door l i ni ngs ngs are used used f or heat heat and sound sound i nsul nsul ati on. on. The door upper edge edge i s hi nged nged t o t he f usel age by pi ano hi nges. nges. Ei ght hooks hooks f i t t ed t o t he door door l ower edge edge l ock t he door door i n the cl cl osed posi posi t i on, on, and and are are actuated vi a a l i nk systemand hydrau hydraul i c actuator. actuator. A hyd hydraul raul i c door door actuat actuat or l ocat ocat ed i n the cent cent er of t he door uppe upperr edge edge act act s on a sci ssor s - t ype act act uati ng mechani echani sm t o open open and and cl ose t he MDC door. The MDC door opens opens when hen the act act uat uat or pi st on rod ret ract s and cl oses when hen t he actuator pi st on r od extends. extends. The el ect r i cal contr ol syst em i s oper oper at ed vi a an i nsi de and/ and/ or an outsi de oper oper ati on pane panell . The The insi de operati operati on pane panell i s l ocated ocated at t he l eft i nner nner si de of t he f usel usel age between STA STA13 1315 15// FR17 and and STA1340 1340// FR18. FR18. The out out si de operat operat i on pane panell i s l ocated i n the l ef t outer si de of t he f usel age between STA1817 1817// FR27 and and STA1870 1870// FR28 FR28.. I t i s covered by by an access access door door ( 231A 231AL) .


2. Com Component ponent Locat i on (Ref (Ref . Fi Fi g. 001) 01) -------------------------------------------------------------------------------FI N FUNCTI ONAL DESI GNATI ON PANEL ZONE ACCESS ATA DOOR REF. REF . -------------------------------------------------------------------------------MAI N DECK CARGO DOOR 835 52- 36- 11 DOOR SUSPENSI ON 835 52- 36- 12 3350 DOOR ACTUATOR 835 52- 33- 51 3351 LATCHI NG ACTUATOR 835 52- 33- 52 DOOR I NSULA NSULATI TI ON 835 52- 36- 13 DOOR LI NI NG 835 25- 58- 22 DOOR SEAL 835 52- 36- 18 LOCKI NG MECHANI SM 835 52- 36- 21 ACCESS COVERS VERS 835 52- 36- 00 LATCHI NG MECHANI SM 835 52- 36- 19 LOCKI NG I NDI CATO CATOR FLAGS FLAGS 835 52- 36- 23 CENTERI NG GUI DE 835 52- 36- 24 I NTERLO TERLOCK CK 835 52-36- 25 DOOR ACTUATI NG MECHANI SM 835 52- 36- 27 SWI TCH BOX 835 52- 36- 28 CARGO COMPARTMENT DOORS ELECTRI CAL 835 52- 35- 00 CONTROL SYSTEM DOOR WARNI NG SYSTEM 835 52- 70- 00 CARGO COMPARTMENT DOOR HYDRAULI C 835 52- 33- 00 SYSTEM VENT DOOR 835 52- 36- 22 LATCH AND STOP FI TTI NGS 835 52- 36- 31 7LX WI NG SCAN SCAN LI GHT 835 33- 49- 00

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ATA 52 A300/A310

A300/A310 Main Deck Cargo Compartment (MDCC) Door - General Description


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ATA 52 A300/A310

A310 Main Deck Cargo Compartment - General Description and FIN

2. Component Locati on

G Gene eneral ener ral al The Upper Upper Deck Car Car go ( UDC) Door i nst al l ed i n t he passenger compart ment LH si de of t he f usel age betwe between en STA1 STA1446/ 446/ FR20 and STA181 TA1817/ FR27 FR27 per per mi t s l oadi oadi ng and unl unl oadi oadi ng of f r ei ght ght uni uni t s. The cargo door door opens opens outwards outwards and upw upwards and and provi provi des des a cl earance earance wi dth of 3. 58 m( 141 141 i n. ) and and a cl ear ear ance ance hei hei ght ght of 2. 56 m( 101 101 in. ) . The The car car go door door wei ght ght i s approx. approx. 550 kg ( 1212 1212.. 5 l b). D Descri escri p pti ti on on The upper deck car go door door st r uct ure i s of conventi conventi onal onal monocoqu onocoque e l i ght ght al l oy const const r ucti on and and consi consi st s mai nl y of of f rames, l onge ongerons, rons, st ri ngers ngers and out out er and i nner nner ski n. A pressure pressure seal seal f i tt ed to t he peri peri phery hery of t he door door ensures ensures pressure-t pressure-t i ght cl osing of t he door oor and and preve prevents nts water water f romenteri ng the f usel usel age. age. Cargo door oor i nsul nsul ati on and and i nternal nternal l i nings are used used for heat heat and and sound i nsul nsul ati on. on. The door upper upper edge edge i s hi nged nged t o t he f usel age by pi ano hi nges. nges. Ei ght hooks hooks f i t t ed t o t he door door l ower edge l ock t he door door i n the cl osed posi posi t i on, on, and and are are act uat uat ed vi a a l i nk systemand hydrau hydraull i c actuator actuator . A hyd hydraul raul i c door door actuator l ocat ocat ed in t he door door upper upper edge edge cent er act s on a sci ssors - t ype act uati ng mechani sm t o open and and cl ose the door door . The door door opens opens when t he act uator pi st on rod ret r acts and cl oses when hen the act act uat uat or pi st on rod ext ext ends. ends. Normal l y the doo doorr i s operated operated el el ectro- hydrau hydraul i cal cal l y vi a a control control pane panell . The The control control pane panell i s hook hooked ed i nto a bracket near t he FW D passenger/ passenger/ cr ew door door LH and can be r emoved f or operat i ng t he car car go door. door. I f t he el ectr i cal s ystem f ai l s, t he door door can be operat operat ed by means eans of of a han hand d pum p. I n addi addi t i on the door door can be be manual anual l y unl unl ocked and opened opened or cl osed by by means eans of a crane. Two openi openi ng posi t i ons at angl angl es of 70ø and 145ø 145ø are provi ded. The car go door can be st oppe opped d at any any i ntermedi edi ate posi t i on. At t he two two open openii ng posi posi ti ons ons t he door door i s hydrauli hydrauli call y l ocke ocked d and and i n addit i on mechan echanii cal l y secured secured by t wo cat cat ch hoo hooks. ks. At t he 70ø 70ø posi posi t i on i t can be addi addi t i onal onal l y secured for mai ntenance ntenance purposes purposes by t wo support support st r uts , i nst al l ed at STA14 STA1446/FR20 46/FR20 and STA STA1817 1817// FR27 FR27.. The The 70ø 70ø openi eni ng angl angl e gi ves suff i ci ent ent cl earance earance for l oadi oadi ng or unl oadi oadi ng pall ets or conta contaii ners. At t he 145ø openi openi ng angl e, cargo can be l oaded oaded or unl oaded oaded by a crane or r amp where cl earance earance does does not not exi st f or t he door door at t he 70ø open openii ng angl angl e. Duri ng open openii ng or cl osi ng the door door can wi t hst and and wi nd for ces up to 40 knots knots and at t he t wo openi openi ng posi posi t i ons ons up t o 60 60 knots. knots. The el ect r i cal contr ol syst emi s used f or contr ol l i ng t he door hydr hydr aul i c act uati on syst em. Li mi t s wi t ches ches i nstal l ed i n the door door suppl y a warni ng si gnal gnal t o the door door warni ng syst em when hen the door oor i s not not f ull y cl osed osed and and l ocke ocked. d. A wi ng scan scan l i ght i s i nstall ed i n the center of t he l ower part part of t he door. door. Mecha echanical nical l ocki ocki ng i ndi ndi cator cator s l ocated ocated at t he bott bott omof t he door door i nner surf ace ace indicate t hat hat t he door door i s f ull y cl osed osed and and l ocked ocked,, cl osed but but not l ocked ocked or l ocked ocked but but not not cl osed. osed. WARNI NG:

A. Upper Deck Car go Door (Ref. (Ref. Fi g. 001) -------------------------------------------------------------------------------FI N FUNCTI ONAL DESI GNATI ON PANEL ZONE ACCESS ATA DOOR REF -------------------------------------------------------------------------------UPPER DECK CARGO DOOR 835 52- 36- 11 DOOR SUSPENSI ON 835 52- 36- 12 3350 DOOR ACTUATOR 835 52- 33- 51 3351 LOCKI NG ACTUATOR 835 52- 33- 52 DOOR LI NI NG AND I NSULATI ON 835 52- 36-13 DOOR SEAL 835 52- 36- 18 SAFETY MECHANI SM 835 52- 36- 21 ACCESS COVERS 835 52- 36- 00 LOCKI NG MECHANI SM 835 5252- 36-19 LOCKI CKI NG I NDI CATOR 835 52- 36-23 CEN CENTERI TERI NG GUI DE 835 52- 36-24 I NTERLOCK 835 52- 36- 25 I NDI CATOR AND SEAL BRACKET 835 52- 36- 26 DOOR ACTUATI NG MECHANI SM WI TH 835 52- 36- 27 3354 SWI VEL PI PE ASSY 835 3355 SWI VEL PI PE ASSY 835 SWI TCH BOX 835 52- 36- 28 CARGO COMPARTMENT DOORS ELECTRI CAL 835 52- 35- 00 CONTROL SYSTEM DOOR WARNI NG 835 52- 70- 00 CARGO COMPARTMENT DOOR HYDRAULI C 835 52- 33- 00 SYSTEM 3362 UDC SELECTOR CONTROL VALVE 232 232AW 52- 33- 53 3363 UDC SELECTOR CONTROL VALVE 232 232AW 52- 33- 53 3085 HAND PUMP 148 148XZ 52- 33- 11 9MJ ELECTRO- MECHANI CAL SELECTOR SELE CTOR VALVE 148 148XZ 52- 33- 12 10MJ ELECTRO- MECHANI CAL SELECTOR VALVE 148 148XZ 52- 33- 12 PRESSURE RELI EF FLAP 835 52- 36- 22 LATCH AND STOP FI TTI NGS 835 52-36- 31 7LX WI NG SCAN LI GHT 835 33- 49- 00

WHEN THE UDC DOOR I S OPENED BUT CARGO I S NOT TO BE LOADED, PROTECT FUSELAGE OPENI NG WI TH SAFETY BARRI ER PN 98A5230800500000.


52-150 52150

ATA 52 A300/A310

A310 Main Deck Cargo Compartment - General Description and FIN

NOTE Some A310 Passenger Windows are either plugged with Aluminum Metal Plug Sheets, Exterior Skin Area covered with Aluminum Metal Exterior Plates and/or Window Panes painted over on the MDCC Door Assembly exterior surface areas.


52-151 52151

ATA 52 A300/A310

A300/A310 Main Deck Cargo Compartment/Upper Deck Cargo Door Door Door Opening/Closing Travel Ranges - General

If the electrical system malfunctions, the MDC door can be operated by means of a hand pump. In addition the MDC door can be manually unlocked and then be opened or closed by means of a crane. Two opening positions at angles of 70° and 145° are given for normal loading. The MDC door can be stopped at any intermediate position. position. In this case an acoustic signal comes on to warn persons. The acoustic signal goes off when the MDC door is moved hydraulically in the normal opening or closing position. The movement of the MDC door stops automatically when the MDC door comes into the 70° opening position. In this position (or in the 145° position) the door actuator is hydraulically locked and in addition mechanically secured by the related catch hook.


At the 70° position the MDC MDC door can be additionally additionally secured for maintenance maintenance purposes by two support struts, installed at STA1446/FR20 STA1446/FR20 and STA1817/FR27. The 70° opening angle gives sufficient clearance for loading or unloading pallets or containers. At the 145° opening angle, cargo can be loaded or unloaded by a crane or ramp. During opening or closing the MDC door can withstand wind forces up to 40 knots and at the two given opening positio positions ns up to 60 knots. Limit switches installed in the MDC door supply a signal to the door warning system when the door is not fully closed and locked. A wing scan light is installed in the center of the lower part of the MDC door. Mechanical locking indicators indicators located at the bottom of the door outer surface indicate that the door is correctly locked.

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ATA 52 A300/A310

A300 Main Deck Cargo Compartment Door Door Opening/Closing Travel Ranges - General


52-153 52153

ATA 52 A300/A310

A300 Main Deck Cargo Compartment - Component Description

General Description Door Structure The door structure is formed by frames and longerons together with outer and inner skins and attaching parts. The milled frames have provisions at their lower ends for receiving the locking hooks and associated linkage. Cutouts in the chemically chemically milled outer skin accommodate: accommodate: the wing scan light the vent door access covers for assembly and maintenance and hoisting lugs used for removal/installation removal/installation and for opening and closing closing the cargo door by means of a crane. The outer and inner skins, frames, longerons, stringers, stiffeners and edge edge members are riveted together. The door is hinged to the fuselage by a multisection stainless steel piano hinge and hinge pin attached by close tolerance bolts. In areas subjected to increased loads, i.e. at the door ends and in the door actuator attachment area, the piano hinge sections are formed as r einforced angular hinges. Fittings for attaching the door actuator are located in the door upper center between STA1605/FR23 and STA1658/FR24. STA1658/FR24. Drain holes to drain the water caused by condensation are integrated in frames and longerons. This drain water is directed via drain valves and drain hoses into the door sill area and then emits from the aircraft. For the installation of door lining, brackets are riveted to the skin of the door structure. Additionally a base ring for fastening the lowerdoor lining is located at the base of the MDC door. • • • •


Door Seal The door seal consists of primary and secondary seals. The primary seal is a lip-type seal made of silicone rubber reinforced with fabric. The seal is retained by a sectional metal sheet attached to the inner surface of the door edge. When the door is closed, the lip of the seal contacts the fuselage door frame. The secondary seal, fitted to the forward and aft edges of the door inner surface, consists of a lip-type seal at t he door and a hose-type seal at t he fuselage door frame. Attachment of secondary and primary seals is similar. A bridging seal forms forms a connection between between primary and secondary secondary seals and is screwed to the door structure. The primary seal together with the structure and locking mechanism ensure the door is pressure-tight when closed, while the secondary seal serves as a weather seal. An additional hose-type seal seal is fitted to the door lower lower edge. The pressure relief flap has a lip-type seal which is retained in t he same manner as the primary and secondary seal. Lining and Insulation Insulation packs which are made of glasswool, cover material and insulation plates made of polyethylene foam plates. The insulation packs are installed in the small cavities between outer and inner skin and are retained with VELCRO tapes. In larger interfaces of the door structure the insulation packs are attached with VELCRO tapes and additionally secured with stud assemblies. To protect the internal door structure a door lining made of prepreg material material is installed on the inner skin. The door lining consists of lining panels, edge linings and dado linings. The lining panels are inserted in brackets and are secured with screws. The edge and dado linings are mounted on brackets of door str ucture with screws.

52-154 52154

ATA 52 A300/A310

A300 Main Deck Cargo Compartment Door - Component Location


52-155 52155

ATA 52 A300/A310

A310 Main Deck Cargo Compartment - Component Description

GENERAL DESCRIPTION

DOOR SEAL

DOOR STRUCTURE DESCRIPTION The door structure is formed by frames and longerons together with outer and inner skins and attaching parts. The milled frames have provisions at their lower ends for receiving the locking hooks and associated linkage.

Description

Cutouts in the chemically milled outer skin accommodate: 5 windows 1 wing scan light 1 pressure relief flap access covers for assembly and maintenance and 3 hoisting lugs used for removal/installation and for opening and closing the cargo door by means of a crane. An additional hoisting lug is located on the lower edge of the door between STA1658/FR24 and STA1711/FR25.

• • • • •

The outer and inner skins, frames, longerons, stringers, stiffeners and edge members are riveted together. The door is hinged to the fuselage by a multi-section stainless steel piano hinge and hinge pin attached by close tolerance bolts. In areas subjected to increased loads, i.e. at the door ends and in the door actuator attachment area, the piano hinge sections are formed as reinforced angular hinges. Fittings for attaching the door actuator are located in the door upper center between STA1605/FR23 and STA1658/FR24. The door frame incorporates drain holes, hoses and valves for draining condensation. Brackets attached to the inner surface of the door accommodate air conditioning conditioning components, overhead stowage compartments and lining which is removed and replaced by a simplified lining, when the aircraft is used in the cargo configuration.


The door seal consists of primary and secondary seals. The primary seal is a lip-type seal made of silicone rubber reinforced with fabric. The seal is retained by a sectional metal sheet attached to the inner surface of the door edge. When the door is closed, the lip of the seal contacts the fuselage door frame. The secondary seal, fitted to the forward and aft edges of the door inner surface, consists of a lip-type seal at the door and a hose-type seal at the fuselage door frame. Attachment of secondary and primary seals is similar. A bridging seal for ms a connection b etween primary and s econdary seals and is screwed to the door structure. The primary seal together with the structure and locking mechanism ensure the door is pressure-tight when closed, while the secondary seal serves as a weather seal. An additional hose-type seal is fitted to the door lower edge. The pressure relief flap has a lip-type seal which is retained in the same manner as the primary and secondary seal. LINING AND INSULATION DESCRIPTION Insulation packs are used for heat and sound protection. The insulation packs are installed in the cavities between outer and inner skin and are retained with cord thread or quick-release fasteners. A lining is installed on the inner surface of the door. When the aircraft is used in the cargo configuration, sections of the cargo door lining may be removed and replaced by a simplified lining. The simplified lining is a sectional monoshell GRP lining and is retained with quick-release fasteners and screws.

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ATA 52 A300/A310

A310 Main Deck Cargo Compartment Door - Component Location

PLUGGED AND/OR PAINTED

Door Structure and Seal

PLUGGED AND/OR PAINTED


52-157 52157

ATA 52 A300/A310

A300 Main Deck Cargo Compartment Door - Door Mechanism Description

General Description Door Mechanism The door mechanism installed in the lower part of the MDC door comprises the primary components: The locking mechanism The latching mechanism The locking indication indication system The interlock mechanism. • • • •

The parts of the locking mechanism are made of stainless steel or titanium. Parts subject to wear are additionally chromium plated. The locking shaft is actuated via manually-operated outside locking lever located in a recess near the forward outside edge of the MDC door. An additional inside locking lever is located at the inner forward edge.


In the LOCKED position, the outside locking lever is secured in the recess by a spring. Both locking levers are connected to the locking shaft via bellcranks and pushrods. The locking shaft is connected to the vent door via a pushrod and shaft. The vent door ensures that the MDC deck cargo compartment is at ambient pressure when opening or closing the MDC door. The vent door remains open until either of the locking levers are pushed fully home. An interlock mechanism mechanism consisting consisting of a lever and roller, roller, link, spring spring and pawl is incorporated to prevent operation of the latching mechanism when the MDC door is opened. The MDC door is latched in the closed position by eight latching hooks connected via bellcranks, levers and spring units to the hydraulically actuated latching shaft.

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A300/A310 Main Deck Cargo Compartment Door - Door Latching Mechanism


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A300/A310 Main Deck Cargo Compartment Door - Locking Indication System

The locking indicator flags are located at the outer lower edge of the cargo door above the latching hooks. They are connected to the locking shaft via adjustable push-rods. push-rods.


The locking indicator flags provide an indication if the cargo door is not properly closed and locked. When the cargo door is closed and locked, the indicator flags must be flush with the outer skin of the MDC door.

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A310 Main Deck Cargo Compartment Door - Centering Guide and Locking Indicator Assembly


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A300/A310 Main Deck Cargo Compartment (MDCC) Door Door Door Operation - General Operation

Door Closing

Door Opening To unlock the MDC door, push the hinge flap in and pull the locking lever out of the door recess and down to the UNLOCKED position. position. This causes the locking shaft to turn and the related safety cams move away from the recess of the latching hooks. At the same time the vent door opens and the locking indicator flags come in view. To get access to the outside operation panel, open the access door 231AL. When the door toggle switch of the operation panel is pushed to the 'UP' position and the residual pressure warning light is off, the latching actuator rotates the latching shaft. The latching hooks disengage from the eccentric bolts of the door sill area and the locking indicator flaps are moved via pushrods to indicate the unlocked condition. Then, the door actuator is hydraulically operated and opens the MDC door as required.

NOTE : Before starting cargo door closing procedure, it is necessary to put the loading bridges in the door sill area into raised position. Otherwise the MDC door control circuit is interrupted.

NOTE : If the residual pressure warning light is on it is impossible to operate the cargo door until the cabin overpressure is equalized via the vent door.

When the door toggle switch on the operation panel is pushed to the 'DOWN' position, the door actuator is hydraulically hydraulically operated to close the MDC door. Before the MDC door closes fully the lever roller of the interlock mechanism runs on the related fuselage fitting, compressing the spring and releasing the latching shaft. When the MDC door is closed, the latching actuator is hydraulically operated and moves the latching shaft to cause the latching hooks to engage with the eccentric bolts of the door sill area. When the latching hooks are fully engaged the LATCHED indication indication lamp on the operation panel comes on. If the locking lever is pushed into the LOCKED position this causes the locking shaft to turn so that the vent door closes and the locking cams engage with the latching hooks. Simultaneously Simultaneously the locking indicator flags are retracted via pushrods so that they are flush with the outer skin of the MDC door.

When the MDC door is opened, the lever roller of the interlock mechanism ceases to contact the fuselage fuselage fitting, permitting a spring to extend. Extension of the spring causes the lever to rotate and via a link moves the pawl into contact with a cam on the latching shaft thus preventing rotation of the latching shaft. The latching shaft is connected to the locking shaft by a telescopic unit which is fully compressed when the MDC door is unlatched and slightly open. The pawl engages with the latching shaft thus preventing a reverse movement of the latching shaft. NOTE : It is also possible to open the MDC door from the inside. In this case use: - the inside locking lever of the MDC door - the inside operation panel between STA1315/FR17 and STA1340/FR18


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A300/A310 Main Deck Cargo Compartment (MDCC) Door Door Operation - General

MDCC Door Operation Panels 1329VU / 1331VU

Door Latching Mechanism


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A300/A310 Main Deck Cargo Compartment Door System Component Component Locations Com Com pon ponent ent Locat Locat ii on on – M M DC DCC C Door oor Syst Sys Syst t em em - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - FI N FUNCTI ONAL DESI GNATI ON PANEL ZONE ACCESS ATA DOOR REF - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - 3054 CHECK VALVE 3055 CHECK VALVE 3060 MANI FOLD 148 148XZ 29- 13- 37 3083 ELECTRI C PUMP CHECK VALVE 148 148XZ 29- 24- 13 3084 ELECTRI ELECTRI C PUM PUMP DELI VERY VERY FI LTER 148 148XZ 148XZ 2929- 24-12 3085 HAND PUMP 148 148XZ 52- 33- 11 3086 PRESSU PRESSURE RE RELI EF VA VALVE LVE 122 148XZ 148XZ 52- 33-22 3734 SEQUEN SEQUENCE VALVE 132 811 52- 33- 24 3735 SEQUENCE VALVE 152 812 7MJ DOOR ACTUATOR 132 811 52- 33- 18 9MJ ELECTRO- MECHANI ANI CAL SELECTOR VALVE 148 148XZ 52- 33- 12 15MJ CONTROL VALVE 122 811 52- 33- 15 25GX 25GX ELECTRI C PUMP 148 148XZ 29- 24- 11 3054 CHECK VALVE 3055 CHECK VALVE 3060 MANI FOLD 148 148XZ 29- 13- 37 3083 ELECTRI C PUMP CHECK VALVE 148 148XZ 29- 24- 13 3084 ELECTRI C PUM PUMP DELI VERY FI LTER 148 148XZ 148XZ 29- 24-12 3085 HAND PUMP 148 148XZ 52- 33- 11 3086 PRESSU PRESSURE RE RELI EF VA VALVE LVE 122 148XZ 148XZ 52- 33-22 3389 CHECK VALVE 132 811 52- 33- 13 3732 FI LTER SCREEN SCREEN 122 811 3734 SEQUENCE VALVE 132 811 52- 33- 24 3735 SEQUENCE VALVE 152 812 7MJ DOOR ACTUATOR 132 811 52- 33- 18 9MJ ELECTRO- MECHANI ANI CAL SELECTOR VALVE 148 148XZ 52- 33- 12


-------------------------------------------------------------------------------FIIN N FU N C TIO IO N A LD ES IG N A TIO IO N PA N EL Z O N EA C C ES S A TA D O O R R EF -------------------------------------------------------------------------------3331 D O O RLA TC H IN GAC TU A TO R 835 835 52 - 33-52 3350 D O O RAC TU A TO R 835 835 52 - 33-51 3354 SW IV EL PI PE A SSEM B LY 233 835 52 - 36-27 3355 SW IV EL PI PE A SSEM B LY 233 835 52 - 36-27 3396 M D CCH EC KV A LV E 232 232A W 52 - 33-54 3397 M D CCH EC KV A LV E 232 232A W 52 - 33-54 3398 RESTRI C TO R 835 835 32M J M D CSELEC TO RC O N TR O LV A LV E 134 811 52 - 33 -53 33 M J M D CSE LEC TO RC O N TR O LV A LV E 23 2 23 2A W 52 - 33 -53 34 M J M D CSE LEC TO RC O N TR O LV A LV E 23 2 23 2A W 52- 33 -53

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A300/A310 Main Deck Cargo Compartment Door System Component Locations


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A300/A310 Main Deck Cargo Compartment Door System Selector Selector Control Valve

NOTE: The Selector Selector Control Control Valve FIN FIN 32MJ is also known as the Hydraulic Priority Valve. NOTE: The MDCC MDCC Door Selector Selector Control Valve 32MJ (3364) installed in the Fuselage Structural area between STA1817/FR27 and STA1870/FR28 prevents simultaneous operation of the MDCC and FWD / AFTCargo Compartment Doors by blocking the last actuated Door Hydraulic System.


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A300/A310 Main Deck Cargo Compartment Door System Door Selector Control Valve FIN 32MJ


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A300 Main Deck Cargo Compartment Door Door Opening Positions - General For the operation of the MDC door there is an outboard operation panel. The inboard operation panel 1329VU is installed in the LH sidewall panel 231KX between STA1215/FR17 and STA1340/FR18. The outboard operation panel 1331VU is integrated in the outer ski n between STA1817/FR27 STA1817/FR27 and STA1870/FR28 STA1870/FR28 and covered by the access panel 231AL. The door actuator 3350 is installed at the top center of the MDC door between the trunnion yoke of the door structure and scissor mechanism. When the door actuator 3350 extends or retracts, the piston rod acts upon the scissor mechanism which closes or opens the MDC door. The opening and closing rate of the MDC door is determined by restrictors installed in the LH and RH valve block. Both valve blocks are attached on the piston rod side of the door actuator housing and have a direct hydraulic connection to the door actuator 3350 to retain the MDC door in each opening position. A pressure relief valve installed in the RH valve block, prevents overloading of the door actuator in case of high wind loads or thermal expansion of the hydraulic fluid. The catch hook assembly of the door actuator safeties the MDC door in the 70° - or 145° opening position (safe position). The catch hook assembly is operated by the spring-loaded pistons (part of the LH and RH valve blocks) via shackles and clevises. The pistons retract hydraulically before the door actuator is pressurized and extend as soon as the MDC door is in the "safe position".


The door actuator is pressurized by MDC selector control valve 34MJ (3363) installed behind lower sidewall panel between STA1393/FR19 and STA1449/FR20. The return line of this valve is provided with MDC check valve 3397. Access to MDC selector control valve 34MJ (3363) and MDC check valve 3397 is gained through a cutout of the lower sidewall panel 232AW. The latching actuator 3331 is installed between the trunnion yoke of the door structure and the latching shaft in the lower MDC door area at STA1472/FR20B. The latching actuator 3331 is pressurized by the MDC selector valve 33MJ (3362) installed behind lower sidewall panel between STA1393/FR19 and STA1449/FR20. Pressurizing of the latching actuator 3331 results in retraction or extension of the piston rod rotating the latching shaft of the latching mechanism and the MDC door is unlocked or locked. The MDC door latching/unlatching cycle is limited by the restrictor 3398. The return line of MDC selector valve 33MJ (3362) is provided with MDC check valve 3396. Access to MDC selector control valve 33MJ (3362) and MDC check valve 3396 is gained through a cutout of the lower sidewall panel. The swivel pipe assemblies 3354 and 3355 connect the pressure lines and return lines of the MDC door hydraulic system in the interface area fuselage/door structure. The MDC selector control valve 32MJ (3364) installed in the framework area between STA1817/FR27 and STA1870/FR28 prevents simultaneous operation of the MDC and FWD cargo compartment doors by blocking the last actuated system.

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A300/A310 Main Deck Cargo Compartment Door Door Opening Positions


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A300/A310 Main Deck Cargo Compartment Door Hydraulic System Door Operation Description For the operation of the MDC door there is an outboard operation panel. The inboard operation panel 1329VU is installed in the LH sidewall panel 231KX between STA1215/FR17 and STA1340/FR18. The outboard operation panel 1331VU is integrated in the outer ski n between STA1817/FR27 STA1817/FR27 and STA1870/FR28 STA1870/FR28 and covered by the access panel 231AL. The door actuator 3350 is installed at the top center of the MDC door between the trunnion yoke of the door structure and scissor mechanism. When the door actuator 3350 extends or retracts, the piston rod acts upon the scissor mechanism which closes or opens the MDC door. The opening and closing rate of the MDC door is determined by restrictors installed in the LH and RH valve block. Both valve blocks are attached on the piston rod side of the door actuator housing and have a direct hydraulic connection to the door actuator 3350 to retain the MDC door in each opening position. A pressure relief valve installed in the RH valve block, prevents overloading of the door actuator in case of high wind loads or thermal expansion of the hydraulic fluid. The catch hook assembly of the door actuator safeties the MDC door in the 70° - or 145° opening position (safe position). The catch hook assembly is operated by the spring-loaded pistons (part of the LH and RH valve blocks) via shackles and clevises. The pistons retract hydraulically before the door actuator is pressurized and extend as soon as the MDC door is in the "safe position".


The door actuator is pressurized by MDC selector control valve 34MJ (3363) installed behind lower sidewall panel between STA1393/FR19 and STA1449/FR20. The return line of this valve is provided with MDC check valve 3397. Access to MDC selector control valve 34MJ (3363) and MDC check valve 3397 is gained through a cutout of the lower sidewall panel 232AW. The latching actuator 3331 is installed between the trunnion yoke of the door structure and the latching shaft in the lower MDC door area at STA1472/FR20B. The latching actuator 3331 is pressurized by the MDC selector valve 33MJ (3362) installed behind lower sidewall panel between STA1393/FR19 and STA1449/FR20. Pressurizing of the latching actuator 3331 results in retraction or extension of the piston rod rotating the latching shaft of the latching mechanism and the MDC door is unlocked or locked. The MDC door latching/unlatching cycle is limited by the restrictor 3398. The return line of MDC selector valve 33MJ (3362) is provided with MDC check valve 3396. Access to MDC selector control valve 33MJ (3362) and MDC check valve 3396 is gained through a cutout of the lower sidewall panel. The swivel pipe assemblies 3354 and 3355 connect the pressure lines and return lines of the MDC door hydraulic system in the interface area fuselage/door structure. The MDC selector control valve 32MJ (3364) installed in the framework area between STA1817/FR27 and STA1870/FR28 prevents simultaneous operation of the MDC and FWD cargo compartment doors by blocking the last actuated system.

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A300/A310 Main Deck Cargo Compartment Door Hydraulic System Schematic


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A300/A310 Main Deck Cargo Compartment Door Normal Opening Procedure MAI N DECK CARGO ( MDC) DOOR - MAI NTENANCE PRACTI CES 1. Equi Equi pment ent and and Mater i al s ------------- -------------- ----------------------------------------------------I TEM DESI GNATI ON -------------------------------------------------------------------------------A. Access ccess Plat f orm, 4.6 t o 7 m( 15 to 23 f t . ) B. Lockw Lockwi re, Corrosi on Resi stant Steel Steel , Di a 0, 0, 8 m m( 0.032 i n) C. 98A52308 52308006 006000 Hoi st i ng Sl i ng D. 98A52308002000 Suppor t St r ut s Refer enced Pr ocedure - 24- 41- 00, 00, P. Block 301 301 - 5252- 3030- 00, 00, P. P. Bl ock 301

B. Nor mal Openi ng of t he MDC Door NOTE : Thi s procedure descr descr i bes the norm normal openi openi ng procedure fr omt he outs outs i de. de. For For opening opening f romt he i nside, use the i nside l ocki ocki ng l ever ever and and the i nsi de ope operat rat i on pan panel el near near STA13 STA1313 13// FR17 FR17.. ( 1)Open 1)Open t he access door door 231AL t o get get access t o the out out si de oper oper at i on panel 1331VU. 1331VU. (2) Make ake sure that t he warni ng l i ght ght "RES "RES PR PRESS" ESS" ( 4) i s off . CAUTI ON : DO NOT OPEN MDC DOOR I F RESI DUAL PRESSURE WARNI NG LI GHT I S ON.

AC External Power Cont ont r ol FWD and AFT Car Car go Com Compart ment Doors Speci Speci al Precaut i ons ons

2. Procedure Procedure A. J ob Set Set - Up ( 1)Conn 1)Connect ect el ectr i cal gr ound ound pow power uni uni t and energi energi ze the ai rcr aft electr i cal cal netw network ork (Ref (Ref . 24- 41-00, P. Bl ock 301). 301). (2)Make ake cert cert ain t hat el ectr ectr oni cs racks racks venti venti l ati on i s correct. (3) Make ake cert cert ai n t hat hat t he f ol l owi ng ci rcui t breakers breakers are cl osed: osed: -------------------------------------------------------------------------------PANEL SERVI CE I DENT. LOCATI ON --------------- ----------------- ------------------ ----------------- ------------101VU ELEC HYD PUMP 23GX GEN2/ B08 133VU HYDRAULI C/ ACCU PRESS CTL & 7GX 333/ T51 CARGO DOOR PUMP ( 4)Put t he access access pl atf orm i n posi posi t i on bel bel ow t he MDC door door and access access door door 231AL.

( 3)Push t he hand handll e fl ap ( 1) i n and and push push the l ocki ng l ever ever ( 2) away fr om t he MDC door door and down t o t he UNLOCKED posi t i on. ( 4)Push t he doo door toggl toggl e swi tch ( 5) t o "UP" "UP" posi posi t i on and and hol hol d unti unti l t he MDC door door st ops ops automati cal l y i n 70ø 70ø open openii ng posi posi t i on and and the i ndi cat cat or l i ght ( 7) com comes on. on. NOTE : I f necessar y, t he m ovement of t he MDC door door c an be st opped at any i ntermedi edi ate posi posi ti on by rel easi easi ng the doo doorr toggl toggl e swi tch ( 5). I f t he MDC doo doorr i s i n an i ntermedi edi ate posi posi ti on, on, two two acou acoust st i c warni ng horns horns come on to warn warn persons. The The acoust i c si gnal gnal st ops ops as soon as the MDC door i s moved t o the 70ø posi t i on. ( 5)Release and and operat operat e the door door t oggl oggl e swi t ch (5) agai agai n to move the MDC door door i n the 145ø 145ø openi openi ng posi t i on. NOTE : The m ovement of t he MDC door door s t ops i n any i nt er medi at e posi posi t i on as soon soon as the doo doorr toggl toggl e swi tch (5) i s r eleased. eleased. I n t hi s case two two warni ng horns come on on to warn persons. The acousti c si gnal gnal st ops i mmedi atel y when the MDC door door i s moved i n t he 70ø or 145ø ope openi ni ng posi posi t i on. on. (6) I f necessa necessary, ry, set the li ght ght swi swi t ch "AREA" ( 9) and/or l i ght ght swi swi tch "COMPT" PT" ( 3) t o "ON" posi t i on. on.

WARNI NG : STAY CLEAR OF DOOR MOVI NG AREA DURI NG OPENI NG AND CLOSI NG OF THE MDC DOOR. CAUTI ON : DO NOT OPERATE MDC DOOR WHEN WI ND SPEED EXCEEDS 40 KNOTS. CLOSE MDC DOOR I MMEDI ATELY WHEN WI ND SPEED I S EXPECTED TO EXCEED 60 KNOTS. CAUTI ON : WHENEVER THE MDC DOOR REMAI NS OPEN DURI NG DI SCONNECTI ON OF COMPONENTS OF THE YEL LOW HYDRAULI C SYSTEM SYST EM, MAKE SURE THAT THE DOOR ACTUATOR I S FI LLED WI TH HYDRAULI C FLUI D. I F NOT, BLEED ACTUATOR AND PRESSURI ZE LI NES BEFORE CLOSI NG MDC DOOR ( REF. 52- 30- 00, P. BLOCK 301) .


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A300/A310 Main Deck Cargo Compartment Door Normal Operation - Opening


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A300/A310 Main Deck Cargo Compartment Door Normal Closing Procedure MAI N DECK CARGO ( MDC) DOOR - MAI NTENANCE PRACTI CES 1. Equi Equi pment ent and and Mater i al s ------------- -------------- ----------------------------------------------------I TEM DESI GNATI ON -------------------------------------------------------------------------------A. Access ccess Plat f orm, 4.6 t o 7 m( 15 to 23 f t . ) B. Lockw Lockwi re, Corrosi on Resi stant Steel Steel , Di a 0, 0, 8 m m( 0.032 i n) C. 98A52308 52308006 006000 Hoi st i ng Sl i ng D. 98A52308002000 Suppor t St r ut s Refer enced Pr ocedure - 24- 41- 00, 00, P. Block 301 301 - 5252- 3030- 00, 00, P. P. Bl ock 301

C. Normal Cl osi ng of t he MDC Door oor ( Ref.

Fi g.

201) 201)

CAUTI ON : THE MDC DOOR SI LL AREA MUST BE CLEAR OF ANY OBSTRUCTI ONS. ( 1)Set t he door door t oggl oggl e swi t ch (5) t o the DOWN posi posi t i on. on. NOTE : I ni t i al l y the MDC door oor moves oves i n the ope open n di di rect i on f or approxi approxi matel y 15 sec. so t hat hat t he catch hook hook of t he door actuat or i s r el eased. eased. Then Then the MDC door door moves oves automati cal l y i n the cl ose di r e ct ct i o n.


2. Procedure Procedure A. J ob Set Set - Up ( 1)Conn 1)Connect ect el ectr i cal gr ound ound pow power uni uni t and energi energi ze the ai rcr aft electr i cal cal netw network ork (Ref (Ref . 24- 41-00, P. Bl ock 301). 301). (2)Make ake cert cert ain t hat el ectr ectr oni cs racks racks venti venti l ati on i s correct. (3) Make ake cert cert ai n t hat hat t he f ol l owi ng ci rcui t breakers breakers are cl osed: osed: -------------------------------------------------------------------------------PANEL SERVI CE I DENT. LOCATI ON --------------- ----------------- ------------------ ----------------- ------------101VU ELEC HYD PUMP 23GX GEN2/ B08 133VU HYDRAULI C/ ACCU PRESS CTL & 7GX 333/ T51 CARGO DOOR PUMP

( 2)Hol 2)Hol d the door door t oggl oggl e swi t ch (5) i n the DOWN posi posi t i on unt unt i l MDC door door i s f ul l y cl osed and and t he i ndi ndi cator l i ght ght " LATC LATCH HED" ( 6) comes on. on. ( 3)Push l ocki ng l ever ever ( 2) up t o the LOCKED posi posi t i on so that i t engage engages s i n t he recess of of the han handle dle f l ap ( 1). ( 4)Check 4)Check t hat hat t he i ndi ndi cator l i ght ght "LATC "LATCHED" ( 6) on the the operat operat i on pan panel el i s of of f . (5) Check heck that that al l ei ght ght l ocki ocki ng i ndi ndi cator f l aps aps are fl ush wi t h t he door door cont cont our our and t he vent vent door door i s cl osed. osed.

( 4)Put t he access access pl atf orm i n posi posi t i on bel bel ow t he MDC door door and access access door door 231AL. WARNI NG : STAY CLEAR OF DOOR MOVI NG AREA DURI NG OPENI NG AND CLOSI NG OF THE MDC DOOR. CAUTI ON : DO NOT OPERATE MDC DOOR WHEN WI ND SPEED EXCEEDS 40 KNOTS. CLOSE MDC DOOR I MMEDI ATELY WHEN WI ND SPEED I S EXPECTED TO EXCEED 60 KNOTS. CAUTI ON : WHENEVER THE MDC DOOR REMAI NS OPEN DURI NG DI SCONNECTI ON OF COMPONENTS OF THE YEL LOW HYDRAULI C SYSTEM SYST EM, MAKE SURE THAT THE DOOR ACTUATOR I S FI LLED WI TH HYDRAULI C FLUI D. I F NOT, BLEED ACTUATOR AND PRESSURI ZE LI NES BEFORE CLOSI NG MDC DOOR ( REF. 52- 30- 00, P. BLOCK 301) .


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A300/A310 Main Deck Cargo Compartment Door Normal Operation - Closing


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A300/A310 Main Deck Cargo Compartment Door Manual Opening Procedure MAI N DECK CARGO ( MDC) DOOR - MAI NTENANCE PRACTI CES 1. Equi Equi pment ent and and Mater i al s ------------- -------------- ----------------------------------------------------I TEM DESI GNATI ON -------------------------------------------------------------------------------A. Access ccess Plat f orm, 4.6 t o 7 m( 15 to 23 f t . ) B. Lockw Lockwi re, Corrosi on Resi stant Steel Steel , Di a 0, 0, 8 m m( 0.032 i n) C. 98A52308 52308006 006000 Hoi st i ng Sl i ng D. 98A52308002000 Suppor t St r ut s Refer enced Pr ocedure - 24- 41- 00, 00, P. Block 301 301 - 5252- 3030- 00, 00, P. P. Bl ock 301

D. Manual anual Openi ng of t he MDC Door NOTE : Two operat operat ors ar e requi requi red f or t hi s oper oper ati on m ode. ode.


2. Procedure Procedure A. J ob Set Set - Up ( 1)Conn 1)Connect ect el ectr i cal gr ound ound pow power uni uni t and energi energi ze the ai rcr aft electr i cal cal netw network ork (Ref (Ref . 24- 41-00, P. Bl ock 301). 301). (2)Make ake cert cert ain t hat el ectr ectr oni cs racks racks venti venti l ati on i s correct. (3) Make ake cert cert ai n t hat hat t he f ol l owi ng ci rcui t breakers breakers are cl osed: osed: -------------------------------------------------------------------------------PANEL SERVI CE I DENT. LOCATI ON --------------- ----------------- ------------------ ----------------- ------------101VU ELEC HYD PUMP 23GX GEN2/ B08 133VU HYDRAULI C/ ACCU PRESS CTL & 7GX 333/ T51 CARGO DOOR PUMP ( 4)Put t he access access pl atf orm i n posi posi t i on bel bel ow t he MDC door door and access access door door 231AL.

( 1)Push t he hand handll e fl ap i n and and pul pul l t he l ocki ng l ever ever ( 2) at t he MDC door down t o t he UNLOCKED CKED posi t i on. (2)Man (2)Manua uall l y posi posi ti on t he l evers evers ( 12) 12) and and ( 13) on the sel ector ector val val ves ves 9MJ and 10M 10MJ l ocated i n t he MLG compart ment down t o manual anual oper oper ati on pos i t i o n. ( 3)To get get access access t o the MDC select or contr ol val ves 3362 (33M (33MJ ) and and 3363 3363 ( 34M 34MJ ) proceed proceed as fol l ows: - di sconne sconnect ct t he necessary necessary qui qui ck-r el ease ease fast eners eners of t he smoke curt ai ns to get get access access t o the access access cover, cover, - remove the access access cover f r omt he RH si dew dewal l pane panell l ocated betw betwee een n STA139 STA1393/ 3/ FR19 and STA1446/F STA1446/F R20. R20. ( 4)Unl atch t he MDC door as f ol l ows: - on the MDC select or contr ol val ve 33M 33MJ ( 15) 15) press and hol hol d the push pushbutt on I (19), (19), - operat operat e t he han handp dpum um p (14) i n the RH MLG wel l t o pressuri ze t he l atchi atchi ng actuator, actuator, - on t he MDC sel sel ector cont cont rol val ve 33M 33MJ ( 15) 15) rel ease t he pushb pushbutt utt on I (19) aft er approx approx.. 30 sec. sec. ( 5)Ope 5)Open n t he MDC door door as f ol l ows: - on the MDC select or contr ol val ve 34M 34MJ ( 16) 16) press and hol hol d the push pushbutt on I (17), (17), - oper oper at e t he hand handpum p (14) t o move the MDC door door i n the open open di di r ecti on, - on t he MDC sel sel ector cont cont rol val ve 34M 34MJ ( 16) 16) rel ease t he pushb pushbutt utt on I ( 17) when when t he MDC door door has r eached eached the requi r ed openi ng posi t i on. ( 6)Set 6)Set t he l evers evers ( 13) 13) and and (12) (12) to up i n the normal posi posi t i on. on. ( 7)I nstal l t he access access cover cover on the RH si dew dewal l pane panell l ocat ocat ed bet bet ween STA1393/ 1393/ FR19 FR19 and STA1446/ FR20 FR20 and r econnect t he smoke cur t ai n.

WARNI NG : STAY CLEAR OF DOOR MOVI NG AREA DURI NG OPENI NG AND CLOSI NG OF THE MDC DOOR. CAUTI ON : DO NOT OPERATE MDC DOOR WHEN WI ND SPEED EXCEEDS 40 KNOTS. CLOSE MDC DOOR I MMEDI ATELY WHEN WI ND SPEED I S EXPECTED TO EXCEED 60 KNOTS. CAUTI ON : WHENEVER THE MDC DOOR REMAI NS OPEN DURI NG DI SCONNECTI ON OF COMPONENTS OF THE YEL LOW HYDRAULI C SYSTEM SYST EM, MAKE SURE THAT THE DOOR ACTUATOR I S FI LLED WI TH HYDRAULI C FLUI D. I F NOT, BLEED ACTUATOR AND PRESSURI ZE LI NES BEFORE CLOSI NG MDC DOOR ( REF. 52- 30- 00, P. BLOCK 301) .


52-176 52176

ATA 52 A300/A310

A300/A310 Main Deck Cargo Compartment Door Manual Operation - Opening


52-177 52177

ATA 52 A300/A310

A300/A310 Main Deck Cargo Compartment Door Manual Closing Procedure MAI N DECK CARGO ( MDC) DOOR - MAI NTENANCE PRACTI CES 1. Equi Equi pment ent and and Mater i al s ------------- -------------- ----------------------------------------------------I TEM DESI GNATI ON -------------------------------------------------------------------------------A. Access ccess Plat f orm, 4.6 t o 7 m( 15 to 23 f t . ) B. Lockw Lockwi re, Corrosi on Resi stant Steel Steel , Di a 0, 0, 8 m m( 0.032 i n) C. 98A52308 52308006 006000 Hoi st i ng Sl i ng D. 98A52308002000 Suppor t St r ut s Refer enced Pr ocedure - 24- 41- 00, 00, P. Block 301 301 - 5252- 3030- 00, 00, P. P. Bl ock 301

E. Manual Cl osi ng of t he MDC Door CAUTI ON : THE LOADI NG BRI DGES I N THE DOOR SI LL AREA MUST BE I N RAI SED POSI TI ON BEFORE CLOSI NG THE MDC DOOR. NOTE : Two operat operat ors are r equi equi red f or t hi s operati on mode. ode.


2. Procedure Procedure A. J ob Set Set - Up ( 1)Conn 1)Connect ect el ectr i cal gr ound ound pow power uni uni t and energi energi ze the ai rcr aft electr i cal cal netw network ork (Ref (Ref . 24- 41-00, P. Bl ock 301). 301). (2)Make ake cert cert ain t hat el ectr ectr oni cs racks racks venti venti l ati on i s correct. (3) Make ake cert cert ai n t hat hat t he f ol l owi ng ci rcui t breakers breakers are cl osed: osed: -------------------------------------------------------------------------------PANEL SERVI CE I DENT. LOCATI ON --------------- ----------------- ------------------ ----------------- ------------101VU ELEC HYD PUMP 23GX GEN2/ B08 133VU HYDRAULI C/ ACCU PRESS CTL & 7GX 333/ T51 CARGO DOOR PUMP ( 4)Put t he access access pl atf orm i n posi posi t i on bel bel ow t he MDC door door and access access door door 231AL. WARNI NG : STAY CLEAR OF DOOR MOVI NG AREA DURI NG OPENI NG AND CLOSI NG OF THE MDC DOOR.

(1) Manua anuall l y posi posi t i on the levers ( 12) and and (13) (13) on the sel sel ect ect or val ves ves 9M 9MJ and 10MJ i n t he RH MLG compart ment down t o t he manual anual oper oper at i on posi posi t i on. ( 2)To get get access access t o the MDC select or contr ol val ves 3362 (33M (33MJ ) and and 3363 3363 ( 34M 34MJ ) proceed proceed as fol l ows: - di sconne sconnect ct t he necessary necessary qui qui ck-r el ease ease fast eners eners of t he smoke curt ai ns to get get access access t o the access access cover, cover, - remove the access access cover f r omt he RH si dew dewal l pane panell l ocated betw betwee een n STA139 STA1393/ 3/ FR19 and STA1446/F STA1446/F R20. R20. ( 3)I f t he MDC door door r ests i n the catch hoo hooks ks (34) of t he door door actuator ( 30) 30) , rel atch thempri thempri or t o cl osi ng the MDC doo doorr as f oll ows: - press and hol hol d t he push pushbu butt t on I ( 17) 17) on the MDC sel ector val ve 34MJ ( 16) 16) and and operat operat e t he han handp dpum um p (14) t o l i f t t he MDC doo doorr unt unt i l t he catch catch hook hook (34) (34) i s cl ear ear of t he door door actuator actuator (30), - cut and r emove t he l ockwi r e and and remove t he bol t ( 31) 31) f r omt he st owage posi posi ti on on the doo doorr actuator actuator ( 30) , - remove t he bl anki anki ng cap ( 33) 33) f rom t he bor bor e (32) of t he check check val val ve bl ock, ock, - screw the bol bol t ( 31) i nto the bore bore (32) of t he check check val val ve block unti unti l t he catch hook hook (34) i s l owered so that t he mechan echanii cal l ocking of t he door door actuator becom becomes i nef nef f ecti ve. ( 4)I f t he MDC door door i s i n the 145ø 145ø open open posi posi t i on, on, proceed proceed as as f ol l ows: - on the MDC select or contr ol val ve 34M 34MJ ( 16) 16) press and hol hol d the push pushbutt on I (17) t o pressu pressuri ri ze the door actuator, actuator, - operate operate t he hand handpu pum mp ( 14) 14) unti l a consi consi derabl derabl e i ncrease of f orce i s noti ced on on the handpu handpump l ever, - on t he MDC sel sel ector cont cont rol val ve 34M 34MJ ( 16) 16) , press and hol hol d the pushbutt shbutt on I I ( 18) unt i l the MDC door door st art s to cl ose. ose. - operat e t he handpu handpum mp ( 14) unt i l t he MDC door moves beyond the dead center. center.

CAUTI ON : DO NOT OPERATE MDC DOOR WHEN WI ND SPEED EXCEEDS 40 KNOTS. CLOSE MDC DOOR I MMEDI ATELY WHEN WI ND SPEED I S EXPECTED TO EXCEED 60 KNOTS. CAUTI ON : WHENEVER THE MDC DOOR REMAI NS OPEN DURI NG DI SCONNECTI ON OF COMPONENTS OF THE YEL LOW HYDRAULI C SYSTEM SYST EM, MAKE SURE THAT THE DOOR ACTUATOR I S FI LLED WI TH HYDRAULI C FLUI D. I F NOT, BLEED ACTUATOR AND PRESSURI ZE LI NES BEFORE CLOSI NG MDC DOOR ( REF. 52- 30- 00, P. BLOCK 301) .


52-178 52178

ATA 52 A300/A310

A300/A310 Main Deck Cargo Compartment Door Manual Operation - Closing


52-179 52179

ATA 52 A300/A310

A300/A310 Main Deck Cargo Compartment Door Manual Closing Procedure MAI N DECK CARGO ( MDC) DOOR - MAI NTENANCE PRACTI CES 1. Equi Equi pment ent and and Mater i al s ------------- -------------- ----------------------------------------------------I TEM DESI GNATI ON -------------------------------------------------------------------------------A. Access ccess Plat f orm, 4.6 t o 7 m( 15 to 23 f t . ) B. Lockw Lockwi re, Corrosi on Resi stant Steel Steel , Di a 0, 0, 8 m m( 0.032 i n) C. 98A52308 52308006 006000 Hoi st i ng Sl i ng D. 98A52308002000 Suppor t St r ut s Refer enced Pr ocedure - 24- 41- 00, 00, P. Block 301 301 - 5252- 3030- 00, 00, P. P. Bl ock 301

E. Manual anual Cl osi ng of the MDC Door - CONTI NUED



( 5)To ful l y cl ose the MDC door, door, remove t he hydraul hydraul i c l ocki ng devi devi ce of of t he door door act uat uat or ( 30) by manua anuall operati operati on of of t he bypass/ ypass/ check check val val ve (35) as f oll ows: - t urn the pivot ( 36) 36) wi t h a spanne spannerr and hol hol d i t so t hat hat t he MDC door moves sl owl y dow downwar ds, - t urn the pi vot ( 36) 36) back back to t he normal posi posi t i on when hen the MDC door i s f l ush wi t h the fusel age age door door f rame. ( 6)I f necessary, necessary, operat operat e the han handp dpum um p (14) unt unt i l t he MDC door door i s f ul l y cl osed. osed. ( 7)On 7)On t he MDC sel ector cont cont rol val ve 33M 33MJ ( 15) 15) press and hol hol d t he push pushbutt on I I (20) (20) to pressu pressuri ze the l atchi atchi ng actua actuator. tor. ( 8)Ope 8)Operat rat e t he han handp dpum ump ( 14) 14) unt unt i l t he MDC door door i s l atched. atched. ( 9)On 9)On the MDC sel sel ector cont cont rol valve 33M 33MJ ( 15) 15) rel ease ease the pushb pushbutt utt on I I ( 20) and st op handpu handpump (14) operat i on. ( 10) 10) Push Push l ocki ng l ever ever ( 2) up t o the LOCKED KED posi posi t i on. ( 11) 11) Posi Posi t i on t he l evers evers ( 12) 12) and and (13) (13) on t he sel ector val ves 9M 9MJ and and 10MJ up to t he norm normal posi posi t i on. on. (12)Ch (12)Chec eck k that that all eight eight l ocking ocking indi indi cator cator f l ags are ful l y retracted. retracted. ( 13) 13) I nstal l t he access access cover on t he RH si dew dewal l pane panell l ocat ocat ed bet bet ween STA1393/ 1393/ FR19 FR19 and and STA1 STA1446/FR20 446/FR20 and reconnect t he smoke curt ai n.



52-180 52180

ATA 52 A300/A310

A300/A310 Main Deck Cargo Compartment Door Manual Operation - Closing


52-181 52181

ATA 52 A300/A310

A300/A310 Main Deck Cargo Compartment Door Opening Door with Crane MAI N DECK CARGO ( MDC) DOOR - MAI NTENANCE PRACTI CES 1. Equi Equi pment ent and and Mater i al s ------------- -------------- ----------------------------------------------------I TEM DESI GNATI ON -------------------------------------------------------------------------------A. Access ccess Plat f orm, 4.6 t o 7 m( 15 to 23 f t . ) B. Lockw Lockwi re, Corrosi on Resi stant Steel Steel , Di a 0, 0, 8 m m( 0.032 i n) C. 98A52308 52308006 006000 Hoi st i ng Sl i ng D. 98A52308002000 Suppor t St r ut s Refer enced Pr ocedure - 24- 41- 00, 00, P. Block 301 301 - 5252- 3030- 00, 00, P. P. Bl ock 301

F. Openi ng of t he MDC Door wi t h a Crane CAUTI ON : DO NOT OPEN MDC DOOR TO 145ø USI NG A CRANE. NOTE : Two operat operat ors are r equi equi red f or t hi s operati on mode. ode.



( 1)Remove the access access panel panel 835C 835CL L ( 24) 24) t o get get access t o the l atchi ng s ha haf t ( 2 2) 2) . (2) Pul Pul l the l ocki ocki ng l ever ever ( 1) at the MDC door oor out out of i ts gri p recess recess dow down t o the UNLOCKED posi posi t i on. on. (3) Turn Turn the lat chi chi ng shaf shaf t ( 22) t o the f ull y unlat unlat ched ched posi posi ti on, on, using the handp handpum ump l ever wi t h the ext ext ensi on ( 23) 23) st owed i n the RH MLG wel l . ( 4) Hook t he MDC door hoi st i ng sl i ng PN 98A52308 52308006 006000 ( 21) i nto t he crane and and con conne nect ct i t t o the lower lower hoi st i ng l ug ( 29) 29) of t he MDC door. door. ( 5)Ope 5)Operr ate t he cr cr ane ane unt i l t he MDC doo doorr reaches reaches t he 70ø 70ø posi posi t i on. on. ( 6)I nst al l t he support support st r uts PN 98A523080 523080020 02000 00 ( 27) t o the MDC door door as f oll ows: - posi posi t i on t he suppo supporr t st rut s ( 27) 27) bet bet ween een the MDC door and and the fi xtur e poi poi nts of t he door door f usel usel age age fr ame, - adj adj ust t he st rut l ength ength by by turni ng the turnbuc turnbuckl kl e (25), (25), - conne connect ct t he supp support ort st rut s ( 27) 27) t o t he MDC door door and door oor f uselage f r ame. ( 7)Rem 7)Remove t he hoi hoi st i ng sl i ng ( 21) 21) f rom t he MDC door door hoi hoi st i ng l ug ( 29) 29) .



52-182 52182

ATA 52 A300/A310

A300/A310 Main Deck Cargo Compartment Door Opening Door with Crane


52-183 52183

ATA 52 A300/A310

A300/A310 Main Deck Cargo Compartment Door Closing Door with Crane MAI N DECK CARGO ( MDC) DOOR - MAI NTENANCE PRACTI CES 1. Equi Equi pment ent and and Mater i al s ------------- -------------- ----------------------------------------------------I TEM DESI GNATI ON -------------------------------------------------------------------------------A. Access ccess Plat f orm, 4.6 t o 7 m( 15 to 23 f t . ) B. Lockw Lockwi re, Corrosi on Resi stant Steel Steel , Di a 0, 0, 8 m m( 0.032 i n) C. 98A52308 52308006 006000 Hoi st i ng Sl i ng D. 98A52308002000 Suppor t St r ut s Refer enced Pr ocedure - 24- 41- 00, 00, P. Block 301 301 - 5252- 3030- 00, 00, P. P. Bl ock 301

G. Cl osi ng of of t he MDC Door wi wi t h a Cr ane CAUTI ON : THE LOADI NG BRI DGE SECTI ONS I N THE DOOR SI LL AREA MUST BE I N THE RAI SED POSI TI ON BEFORE CLOSI NG THE MDC DOOR. NOTE : Two operat operat ors are r equi equi red f or t hi s oper oper ati on m ode. ode. ( 1)Hook 1)Hook t he MDC hoi hoi st i ng sl i ng PN PN 98A52308006000 (21) i nto t he crane and and connect nect i t to t he l ower hoist i ng l ug ( 29) 29) of MDC doo door. r. (2) Conne onnect ct t he rope rope (28) which which bel bel ongs ongs to t he hois hois ti ng sl i ng (21) t o the l ower hoi st i ng l ug ( 29) 29) of t he MDC door. door. ( 3)To get get access access t o the MDC sel sel ector cont cont rol val ves 3362 3362 ( 33M 33MJ ) and and 3363 3363 ( 34M 34MJ ) pr oceed oceed as as f ol l ows: - di sconne sconnect ct t he necessary necessary qui qui ck-r el ease f ast eners eners of t he smoke curt curt ai ns to get get access access to t he access access cove cover, r, - r emove the access access cover f rom t he RH si dew dewal l pane panell l ocat ocat ed betw between een STA1393 STA1393// FR19 and STA1446/ 1446/ FR20. FR20. ( 4)I f the MDC doo doorr rest s i n the catch catch hook hook (34) (34) of t he door door actuator ( 30), 30), rel ease ease t he catch catch hook hook (34) (34) pri or t o cl osi ng t he MDC doo doorr as f ol l ows:


2. Procedure Procedure A. J ob Set Set - Up ( 1)Conn 1)Connect ect el ectr i cal gr ound ound pow power uni uni t and energi energi ze the ai rcr aft electr i cal cal netw network ork (Ref (Ref . 24- 41-00, P. Bl ock 301). 301). (2)Make ake cert cert ain t hat el ectr ectr oni cs racks racks venti venti l ati on i s correct. (3) Make ake cert cert ai n t hat hat t he f ol l owi ng ci rcui t breakers breakers are cl osed: osed: -------------------------------------------------------------------------------PANEL SERVI CE I DENT. LOCATI ON --------------- ----------------- ------------------ ----------------- ------------101VU ELEC HYD PUMP 23GX GEN2/ B08 133VU HYDRAULI C/ ACCU PRESS CTL & 7GX 333/ T51 CARGO DOOR PUMP ( 4)Put t he access access pl atf orm i n posi posi t i on bel bel ow t he MDC door door and access access door door 231AL. WARNI NG : STAY CLEAR OF DOOR MOVI NG AREA DURI NG OPENI NG AND CLOSI NG OF THE MDC DOOR. CAUTI ON : DO NOT OPERATE MDC DOOR WHEN WI ND SPEED EXCEEDS 40 KNOTS. CLOSE MDC DOOR I MMEDI ATELY WHEN WI ND SPEED I S EXPECTED TO EXCEED 60 KNOTS. CAUTI ON : WHENEVER THE MDC DOOR REMAI NS OPEN DURI NG DI SCONNECTI ON OF COMPONENTS OF THE YEL LOW HYDRAULI C SYSTEM SYST EM, MAKE SURE THAT THE DOOR ACTUATOR I S FI LLED WI TH HYDRAULI C FLUI D. I F NOT, BLEED ACTUATOR AND PRESSURI ZE LI NES BEFORE CLOSI NG MDC DOOR ( REF. 52- 30- 00, P. BLOCK 301) .

NOTE : Thi Thi s causes t he mechan echanii cal l ocki ng mechan echanii sm of t he door door actuator actuator (30) t o bec becom ome i nef nef f ecti ve. ve. - remove ove and and di di scard the l ockw ockwi re f rom bol bol t ( 31) 31) and and remove ove i t f rom t he st owage age posi posi t i on, on, - remove t he bl anki anki ng cap ( 33) 33) f rom t he bore bore ( 32) 32) , - screw the bol bol t ( 31) i nto the bore bore ( 32) unti l the catch catch hoo hook k (34) (34) i s rel rel eased eased. ( 5)I f t he MDC doo doorr i s i n the 145 145ø ø posi posi ti on, on, proceed proceed as fol l ows: - on the MDC sel sel ector cont cont rol val ve 34M 34MJ ( 16) 16) press and hol hol d the pushbut but t on I I ( 18) 18) unt unt i l t he MDC door door moves oves beyond beyond the dead dead cent cent er, - oper oper at e t he crane downwards and si mul t aneousl aneousl y pul l down t he MDC door door wi t h the rope ( 28) 28) t o move MDC door door i n the cl osi ng di r ecti on. on. ( 6)To ful l y cl ose the MDC door, door, remove t he hydraul i c l ocki ng devi devi ce of of t he door door act uat uat or ( 30) 30) by manua anuall operat operat i on of of bypass/ check check val ve (35) as f ol l ows: - cut cut and and remove ove the lockwi re f rom the bol bol t ( 36), 36), - remove ove the bol bol t ( 36) 36) f romt he f i rst bore bore ( 38) 38) of t he f ork and and bore bore of of t he operati operati ng l ever ever ( 39) 39) , - push push the ope operat rat i ng l ever ever ( 39) 39) i n the di di recti on of t he val val ve bod body y and and i nstal l the bolt bolt (36) i n the seco second nd bore bore ( 3) of the fork and the bore bore of t he operati operati ng l ever ever (39). ( 7)On 7)On the MDC sel sel ector cont cont rol val ve 34M 34MJ ( 16) 16) , r el ease t he pushb pushbutt utt on I I ( 18) 18) when hen the MDC door i s f l ush wi t h the fusel age age door door f rame. NOTE : I f t he MDC door door i s not f l ush, ush, operat operat e the hand handpu pum mp unt i l t he MDC doo doorr i s corr ectl y cl osed. osed.


52-184 52184

ATA 52 A300/A310

A300/A310 Main Deck Cargo Compartment Door Closing Door with Crane


52-185 52185

ATA 52 A300/A310

A300/A310 Main Deck Cargo Compartment Door Closing Closing Door with Crane MAI N DECK CARGO ( MDC) DOOR - MAI NTENANCE PRACTI CES 1. Equi Equi pment ent and and Mater i al s ------------- -------------- ----------------------------------------------------I TEM DESI GNATI ON -------------------------------------------------------------------------------A. Access ccess Plat f orm, 4.6 t o 7 m( 15 to 23 f t . ) B. Lockw Lockwi re, Corrosi on Resi stant Steel Steel , Di a 0, 0, 8 m m( 0.032 i n) C. 98A52308 52308006 006000 Hoi st i ng Sl i ng D. 98A52308002000 Suppor t St r ut s Refer enced Pr ocedure - 24- 41- 00, 00, P. Block 301 301 - 5252- 3030- 00, 00, P. P. Bl ock 301

G. Cl osi ng of t he MDC Door wi t h a Crane - CONTI NUED


2. Procedure Procedure A. J ob Set Set - Up ( 1)Conn 1)Connect ect el ectr i cal gr ound ound pow power uni uni t and energi energi ze the ai rcr aft electr i cal cal netw network ork (Ref (Ref . 24- 41-00, P. Bl ock 301). 301). (2)Make ake cert cert ain t hat el ectr ectr oni cs racks racks venti venti l ati on i s correct. (3) Make ake cert cert ai n t hat hat t he f ol l owi ng ci rcui t breakers breakers are cl osed: osed: -------------------------------------------------------------------------------PANEL SERVI CE I DENT. LOCATI ON --------------- ----------------- ------------------ ----------------- ------------101VU ELEC HYD PUMP 23GX GEN2/ B08 133VU HYDRAULI C/ ACCU PRESS CTL & 7GX 333/ T51 CARGO DOOR PUMP ( 4)Put t he access access pl atf orm i n posi posi t i on bel bel ow t he MDC door door and access access door door 231AL. WARNI NG : STAY CLEAR OF DOOR MOVI NG AREA DURI NG OPENI NG AND CLOSI NG OF THE MDC DOOR. CAUTI ON : DO NOT OPERATE MDC DOOR WHEN WI ND SPEED EXCEEDS 40 KNOTS. CLOSE MDC DOOR I MMEDI ATELY WHEN WI ND SPEED I S EXPECTED TO EXCEED 60 KNOTS. CAUTI ON : WHENEVER THE MDC DOOR REMAI NS OPEN DURI NG DI SCONNECTI ON OF COMPONENTS OF THE YEL LOW HYDRAULI C SYSTEM SYST EM, MAKE SURE THAT THE DOOR ACTUATOR I S FI LLED WI TH HYDRAULI C FLUI D. I F NOT, BLEED ACTUATOR AND PRESSURI ZE LI NES BEFORE CLOSI NG MDC DOOR ( REF. 52- 30- 00, P. BLOCK 301) .


( 8)Resel 8)Resel ect t he hydr aul aul i c l ocki ng devi devi ce on t he bypass/ bypass/ check check val val ve t o t he norm normal posi posi t i on as fol l ows: - remove t he bol bol t ( 36) 36) f rom t he second second bore bore ( 37) 37) of t he f ork and bore bore of t he operati operati ng l ever ever (39), - place the operati operati ng l ever ever ( 39) 39) i n the norm normal posi ti on and and instal l the bolt bolt (36) i n the fi rst bore bore ( 38) and and the bore i n the ope operati rati ng l ever ever (39), (39), - ti ghten hten the bol bol t (36) (36) and and safety safety i t wi th l ockw ockwi re. ( 9)Remove the access access panel panel 835C 835CL L ( 24) 24) t o get get access t o the l atchi ng s ha haf t ( 2 2) 2) . ( 10) 10) I f r equi equi red, push push the MDC door door manua anuall l y i n t he f ul l y cl osed posi posi t i on and and hol d i t . ( 11) 11) I f necessary, necessary, remove t he access access pane panell 835C 835CL ( 24) 24) t o get get access access t o the l atchi atchi ng shaft shaft ( 22). ( 12)On 12)On the MDC sel ector contr ol val ve 33M 33MJ ( 15) 15) press and hol hol d the pushb pushbutt utt on I I (20) t o l atch the MDC doo door. r. ( 13) 13) Turn Turn t he l atchi ng shaft ( 22) 22) t o the l atched posi posi t i on usi ng t he hand handpu pum mp l ever ever wi wi t h extensi extensi on ( 23) 23) s t owed i n the RH MLG wel l . ( 14) On the MDC sel sel ector contr ol valve 33M 33MJ ( 15) rel ease t he pushbu pushbutt t on II ( 20 20) . ( 15) 15) Push Push the l ocking l ever ever ( 2) of t he MDC door up to t he LOCKED KED posi posi t i on so that i t enga engage ges s i n the recess of of the han handle dle f l ap ( 1). (16)Check that al l the locki ng i ndi cator fl ags ags are f ull y retr acted and and t hat hat t he vent vent door door i s cl osed. osed. ( 17) 17) Reset t he catch hook hook ( 34) 34) t o norm normal posi t i on as fol l ows: - remove ove the bolt bolt ( 31) f romt he bore bore ( 32) and and i nstall i t to t he stowage age pos i t i on, - safety the bol t ( 31) wi t h t he l ockw ockwi re, - i nstal l the bl bl anki anki ng cap cap (33) (33) t o the bore bore (32). ( 18) 18) I nstal l t he access access pane panell 835C 835CL ( 24) 24) on the MDC door. door. ( 19) 19) I nstal l t he access access cover on t he RH si dew dewal l pane panell l ocat ocat ed bet bet ween STA1393 STA1393// FR19 and STA1446/FR20 TA1446/FR20 and and reconnect t he smoke curt ai n. ( 20) 20) Rem Remove t he hoi hoi st i ng sl i ng ( 21) 21) f rom t he MDC door door hois t i ng l ug ( 30) 30) . H. Cl ose-Up ose-Up ( 1)Check 1)Check t hat hat worki worki ng areas are are cl ear of t ools and mater i al s. ( 2)De-energi -energi ze ai rcr aft el ectri cal net net work and and disconnec disconnectt t he el ectri cal ground ground pow power uni t ( Ref Ref . 24- 41- 00, 00, P. Block 301). 301). ( 3)Rem ove access pl atf orm( s) .

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ATA 52 A300/A310

A300/A310 Main Deck Cargo Compartment Door Closing Door with Crane


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ATA 52 A300/A310

A300/Some A310 Main Deck Cargo Compartment Doors Door Warnings and ECAM Activation - General Description

General Description – Upper Cargo Door The door warning system electrically electrically monitors the condition, that is, "open/not locked" and "closed/locked" positions of the following doors: MAIN DECK, FWD, AFT and BULK Cargo Compartment Doors A residual pressure pressure warning system system is also installed installed in the MAIN DECK Cargo Compartment Doors. Incorporated in each door are warning switches which are open when the door is opened or unlocked. Displays are provided for the flight crew on the cockpit center pedestal. These comprise two MASTER CAUTION pushbutton switches, two Cathode Ray Tubes (CRTs) and a selection control panel, all of which form part of the Electronic Centralized Aircraft Monitoring (ECAM) system. •


The MAIN DECK Cargo Compartment Compartment Door is monitored by two switches switches indicating "door open" and "door not locked": The residual pressure warning light installed in the outside operation panel 1331VU and inside operation panel 1329VU of the MAIN DECK Cargo (MDC) door is in the form of a red light. If this light illuminates, the MDC door can not be opened until the differential pressure between MDC compartment and aircraft environment is equal.

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A300/Some A310 Courier Passenger/Crew Doors Door Warnings and ECAM Activation - General View


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ATA 52 A300/A310

Some A310 Main Deck Cargo Compartment Doors Door Warnings and ECAM Activation - General Description

General Description – Upper Cargo Door The door warning system electrically electrically monitors the condition, that is, "open/not locked" and "closed/locked" positions of the following doors: MAIN DECK, FWD, AFT and BULK Cargo Compartment Doors A residual pressure pressure warning system system is also installed installed in the MAIN DECK Cargo Cargo Compartment Doors. Incorporated in each door are warning switches which are open when the door is opened or unlocked. Displays are provided for the flight crew on the cockpit center pedestal. These comprise two MASTER CAUTION pushbutton switches, two Cathode Ray Tubes (CRTs) and a selection control panel, all of which form part of the Electronic Centralized Aircraft Monitoring (ECAM) system. •


The MAIN DECK Cargo Compartment Compartment Door is monitored by two switches switches indicating "door open" and "door not locked": The residual pressure warning light installed in the outside operation panel 1331VU and inside operation panel 1329VU of the MAIN DECK Cargo (MDC) door is in the form of a red light. I f this light illuminates, the MDC door can not be opened until the differential pressure between MDC compartment and aircraft environment is equal.

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Some A310 Courier Passenger/Cre Passenger/Crew w Doors Door Warnings and ECAM Activation - General View


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ATA 52 A300/A310

THIS PAGE INTENTIONALLY LEFT BLANK ATA 52 - END COURSE CODE - M540000


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Airbus 52 A300 A310 Doors

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