Landing Gear Flashcards
Why are there two triangles for each gear on the ECAM WHEEL page?
Each triangle represents the gear position detected by one of the two LGCIUs
The landing gear hydraulic safety valve is controlled by
The gear lever and ADIRUs 1 and/or 3
Which statement is true concerning the green hydraulic system as it relates to normal landing gear extension
Hydraulic system remains pressurized with gear extended
The landing gear extension and retraction is controlled electrically by
LGCIU 1 or 2
With the gear NOT down, what causes the red landing gear DOWN arrow to illuminate
RA < 750 feet with power at approach settings and flaps not 0
The landing gear DOWN arrow illuminates red with associated ECAM L/G GEAR NOT DOWN warning if the landing gear is not down and
Flaps 3 or FULL selected with both radio altimeters inoperative
According to the graphic, what is the position of the landing gear?
(Wheel page shows one amber icon for each landing gear and one green triangle for each landing gear.)
One LGCIU has failed and the gear is downlocked
What is a characteristic of landing gear gravity extension (except 49XX 320s)?
Noswheel steering is deactivated
Which landing gear system is lost with a green hydraulic failure
Nose wheel steering
With a green hydraulic system failure only, which brake system is not available
Autobrakes
How do you stop an airplane with a failed parking brake, during engine start
Restore braking with the brake pedals
What happens if the A/SKID and N/W STRG switch is turned off (except 49XX 320s)?
Brakes revert to the alternate brake system without nose wheel steering or antiskid.
A brake accumulator supplies at least _____ full brake applications
7
Which hydraulic system(s) provides pressure for the ALTERNATE brakes?
Yellow
Which hydraulic system is used for the parking brake
Yellow