Landing Gear Flashcards
The maximum NWS angle using pedals
6 degrees
The maximum NWS using hand wheel
75 degrees
The steering system receives actuating hydraulic pressure when
The Antiskid and NWS switch is on.
Towing control lever is in the normal position.
At least one engine is running.
The aircraft is on the ground.
NW STRG DISC appears in amber when the nose wheel steering selector is in the towing position and if
One engine is running
The normal brake system uses ——— hydraulic pressure
Green
The alternate brake system uses ——- hydraulic pressure
Yellow
A changeover between the two BSCU channels takes place at each
DOWN landing gear lever selection or in case one channel fails
The anti skid system is deactivated below
20 knots
MAX autobrake mode cannot be armed
In flight
Automatic braking is activated when
The command for ground spoiler extension is detected (for LO or MED).
The command for ground spoiler extension is detected and the wheel speed is above 40 knots (for MAX)
For autobrake to activate at least —- SEC’s must be operative
Two
The accumulator can supply at least —- full brake applications
Seven
The accumulator maintains the parking pressure for at least
12 hours
Medium autobrake mode sends progressive pressure to the brakes — seconds after the ground spoilers deploy in order to decelerate the aircraft at —m/s
Two seconds
3 m/s
LO autobrake mode sends progressive pressure to the brakes — seconds after the ground spoilers deploy in order to decelerate the aircraft at —m/s
2 seconds
2 m/s
DECELERATIONS light comes on green when
The actual deceleration is 80% of the selected rate
The nose landing gear retracts
Forward
The main landing gears retract
Inboard
The LGCIU’s switch over automatically at the completion of the
Retraction cycle
When the aircraft is flying faster than ——- a safety valve automatically cuts off hydraulic supply to the landing gear system.
260kt
The LGCIU’s receive position information from the
Landing gear.
Cargo doors.
Landing flap.
The Landing Gear Indicator Panel is connected to
LGCIU 1. Therefore if LGCIU 1 is U/S there will be no gear indication on this panel. LGCIU 2 will still indicate on lower ECAM.
