Can you reset the EMER extension SYS in flight
Click to see answer
Yes, as long as Green SYS is available
Click to see question
Can you reset the EMER extension SYS in flight
Yes, as long as Green SYS is available
Which LGCIU is connected to the landing gear indicator panel
LGCIU 1
1 nose landing gear retract…
Forward
2 main landing gears retract…
Inboard
In the event of normal system fails to extend the gear hydraulically, crew can use…
Hand crank to extend it mechanically
Green upside down triangle and red UNLK light mean…
Green = Gear is locked down
Red = is not locked in the selected position
What control the extension and retraction of the gear and operation of the door
LGCIU, Landing Gear Control Interface Unit
What else does the LGCIU do
Supply information about the gear to ECAM for display
Send signals indicating whether the aircraft is inflight or on the ground to other aircraft systems
Which HYD SYS actuate all gear and doors
Green
At what speed, the HYD supply is cut off to the landing gear system
Above 264 kts, safety valve automatically cuts off the HYD supply
Gravity extension, gear door remain open or closed
Open
LGCIU receive position information from x3
Landing gear
Cargo door
Landing flap position
What will happen when using hand crank to drop the gear
Isolate the gear HYD from the Green SYS
Unlock all gear doors and nose + main gear
Allow gravity to drop the gear to the extended position
How do you make sure the gear is being correctly extended and locked
Locking spring help the crew to crank the gear into locked position
Aerodynamic forces assist in the locking of the nose gear
When will one LGCIU switch over to the other one
At the completion of the retraction cycle
Also switch over in case of failure
At what speed, HYD supply remains cut off as long as landing gear lever is up
Below 260 kts
If one red UNLK remains ON, how can you confirm the gear is downlocked
Using the Wheel SD page
Only one green triangle on each landing gear is sufficient to confirm the landing gear is down locked
What is installed to prevent an inadvertent retraction of the gear on the ground
Interlock mechanism
Gravity extension, how many turns for the hand crank
3 turns clockwise
How does the interlock mechanism work
By locking the lever in DOWN position when shock absorber on either main gear is compressed or nose wheel steering is not centered OR
The nose wheel steering is not centered
Red Arrow mean…
Gear is not locked down when aircraft is in landing configuration and red warning appears on ECAM
When the landing gear lever is selected UP, what will happen
Gear doors are opening
Normal brake system brake the wheels of the main gear automatically
A brake band in the nose landing gear well brakes the nose landing gear wheels as the door close
What will happen when crew operate the crank handle
The cutout valve shuts off the HYD pressure to the landing gear system and depressurize
