B767 Warnings

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BOEING 767 SYSTEMS REVIEW

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WARNINGS 1. GENERAL EICAS = Engine Indications Crew Alerting System ¡ 3 categories of messages Ô WARNINGS = prompt action Ô CAUTIONS = timely action Ô ADVISORIES = time available basis ¡ LEFT computer powering in AUTO ¡ FIRST message is the new one with a maximum of 11 on one page ¡ CANCEL Ô removes CAUTIONS and ADVISORIES Ô calls the second page ¡ RECALL redisplays CAUTIONS and ADVISORIES ¡ CRT U/S = “EICAS DISPLAY” Ô Push “ENGINE” switch to have reduced indications on other CRT Ô STATUS display is no more available in flight ¡ CONTROL PANEL U/S = “EICAS CONT. PNL” Ô Secondary instruments auto displayed on the lower CRT Ô Failure of Cancel, Recall, Engine and Status switches •

INHIBITS

¡ INHIBITS Ô MASTER CAUTION and AURAL at 80 kt if RTO, CAUTION comes ON below 75 kt Ô FIRE BELL and MASTER WARNING lights at nose gear liftoff Ô all inhibits until 20 sec or 400 ft RA whichever occurs first Ô EICAS messages not inhibited Ô MASTER CAUTION and BEEPER on the ground with BOTH fuel levers cutoff ¡ EVENT record retains ONLY the last one and cancels the previous one •

AURAL

¡ Bell (FIRE), Voice (GPWS, TCAS) or Siren (cabin, A/P, configuration or overspeed) ¡ Beeper 4 times in less than 1 second for all other cautions ¡ OVERSPEED WARNING Ô cannot be silenced without reducing the speed ¡ STALL WARNING Ô Stick Shakers Ô With flaps UP & AOA increases towards the stall, control column moves forward A on ground by testing both systems together, the control column must move forward ¡ LANDING GEAR Ô Below 800 ft and either thrust lever retarded Ô FLAPS more than 20 (horn cannot be silenced) Ô Any altitude with either thrust lever retarded in case of failure of left RA •

TAKE-OFF WARNING Ô LE slats or TE flaps not in T/O position Ô Slat/flap disagrees with lever position Ô Stabilizer trim Ô Spoiler NOT in down position Ô Parking brake valve closed Copyright  Smartcockpit.com

Ludovic ANDRE / version 00

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BOEING 767 SYSTEMS REVIEW

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GROUND PROXIMITY

¡ MODES Ô 1 = Excessive DESCENT rate = ratio R/A with R/D Ô 2 = Excessive terrain closure rate = 2A if NOT in landing configuration = 2B if in landing position = idem as 1 but with CLOSURE rate and not R/D Ô 3 = Altitude loss after T/O or G/A Ô 4 = Unsafe terrain clearance while not in the landing configuration Ô 5 = below G/S (> 1.3 dot below an ILS G/S + < 1000 ft RA with gear down)) Ô WINDSHEAR = priority on the other modes (at liftoff + only < 1500 ft RA on approach) •

TCAS

¡ Traffic Collision & Avoidance System consists of : - 1 TCAS computer (transceiver which interrogates transponders of other aircraft) - 1 top + 1 bottom mounted TCAS directional antenna - 2 transponders - 1 ATC/TCAS control panel - 2 ADIs - 2 HSIs - 2 IVSIs - 1 cockpit speaker which is used for voices messages. ¡ TCAS provides : - TA displayed when intruder is 20 to 48 sec to enter the TCAS aircraft’s collision area (+ “Traffic-Traffic”) - RA displayed when intruder is 20 to 35 sec to enter the TCAS aircraft’s collision area (+ “MESSAGE”) * appropriate message. Ex : “ Descent, descent !” ¡ TCAS requires the following equipment to be functional and operating: - ATC transponder - ADC - ADI - HSI - IVSI - Radio altimeter. ¡ ln some instances where inhibiting RAs may be appropriate it is not possible to do so due to the limited number of sensor inputs to TCAS. ln these cases, TCAS may command maneuvers which may significantly reduce stall margins. Conditions where this may occur include : -

Bank angle in excess of 15°. Operation at airports outside of 0 to 5300 ft MSL or temperatures outside ISA + or - 30°C. One engine inoperative. Abnormal configurations such as landing gear not retractable. Leaving aircraft in inappropriate configurations when climb RA occurs. Speeds below normal operating speeds. Buffet margin less than 0.3 g.

Copyright  Smartcockpit.com Ludovic ANDRE / version 00