Landing Gear and Brakes Flashcards
How many ways can landing gear be lowered
Normal, Alternate, Freefall
Vlo & Vle
200 KIAS
Limiting factor for Vlo & Vle
Mechanical doors
Red light on landing gear control unit
Disagreement between gear position and landing gear handle position
If you have 2 green A and 1 green B is the gear down and locked
Yes
Taxi light will illuminate when
The gear is down and locked
Gear warning
<1,500 RA and PLA 46° (EEC ON), 66° (EEC OFF) - Cancelable
<200 ft RA regardless of flap position or PLA - Non cancelable
Flap position selected beyond 17° - Non cancelable
Max tire speed
165 KAIS
Red DWONLOCK RELEASE
Disengages mechanical lock allowing to move gear handle. Verify airplane is not in ground mode. Check pressurization
Touchdown protection
Prevents brake actuation prior to 3 seconds after touchdown or wheel speed less than 50 KTS
Emergency brake overrides
Touchdown protection and antiskid
Which hydraulic system provides pressure to brakes
Green (outboard), Blue (inboard)
How to tell if the brakes are worn out
Brake ware indicator is flush with the pads. Parking brake must be on
Do you have antiskid in the air
No
Do you have antiskid in auto transfer
No. antiskid is on DC buses
How to tell if the antiskid is inoperative
Only when the ger is down
How may times can you use emergency brake before accumulator depletes
8-10 times
Do you have nose wheel steering in the air
No. Needs nose wheel and right main wheel shock absorbers to compress
Turn radius with tiller
50 degrees each side
STEER INOP MAP
Electronic control circuit failure or electronic box looses power
STEER INOP Glareshield
Tiller center position an nose wheel position is have > 9 degree difference or trigger is pressed
Do you have nosewheel steering in auto transfer
Yes. NWS is on EDC 1
What tells the system if the gear is up ,down or in trasistion
Proximity swithces
What tells the system if the gear is up ,down or in transition
Proximity sensors
