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10 Cards in this Set
- Front
- Back
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Aft overhead panel landing gear indicator lights |
- separate circuits - green = gear down and locked even if main panel extinguished *only 1 light (center or overhead panel) needs to be illum for gear to be considered down/locked |
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Gear retraction |
- extension/retraction pwrd System A - main wheel de-spin - nose wheel stopped by internal snubber - if spinning tire w/ loose tread impacts fitting in wheel well, retraction stopped and gear free falls to down pos - mechanical uplocks hold mains - overcentre lock holds nose up |
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Gear extension |
- hyd pressure, gravity and air loads - held in place by overcentre mechanical and hydraulic locks |
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Manual extension |
- may be req if System A press lost - gear free falls into pos via gravity and air loads after unlocks released (manual release) |
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NWS |
- System A pwr Nose Wheel Steer Alt switch - power from system B - must be on ground to power - turns up to 78° either direction - for towing/pushback, lockout pin will depressurize NWS |
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Brakes |
Normal brakes - pwrd system B Alternate brakes - auto pwrd system A when system B press low/ fails Brake accumulator - trapped press can provide several brake apps or used to set park brake when loss of normal and alt brakes |
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Antiskid |
Normal brakes - ea main wheel Alt brakes - ea main wheel pair - if skid detection, press reduced to wheel/pair until skid stops - w/ loss of both A and B system, protection still available |
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ANTI SKID INOP |
- reduced thrust TO Prohibited - Prohibited on wet, slippery, or contaminated rwys |
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Autobrakes |
- only avail w/ normal system B
For RTO to arm - a/c on ground - antiskid and autobrake operational - switch to RTO - wheel spin < 60kts - thrust levers idle
*if RTO < 90kts, autobraking will not start |
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AUTOBRAKE DISARM |
In air - when landing selection made, system self-tests - amber light if test unsuccessful - system doesn't arm On ground - speed brake lever to down detent - 1/both thrust levers advanced - Man braking applied |
