Landing Gear Brakes Flashcards
LG Warn inhibit button lights up when pressed in case of RA failure.
When does the light extinguish?
- Both engines - TLA >45 degrees
- OEI - TLA > 60 degrees
- Flap selector 5 or Full and LG not down locked.
If you get a landing gear indication disagree, how long after the disagreement condition does the indication turn red?
20 seconds
How many parking brake applications are possible with accumulators pressurised?
6 applications
When do you get the ON inscription in the EMER / PRKG BRAKE button?
Emer parking brake actuated and
Hydraulic pressure on brake line.
If you have brake temperatures in the caution range, can you take off?
NO
When do you get a green towing light on the nose wheel gear?
- Steering disconnected by external steer disconnect switch.
- Parking brake not applied
- Main brakes not applied.
All of the above
How many wow switches are on the aircraft in total?
6.
2 on each landing gear.
How many up-lock and down-lock sensors do we have per landing gear leg?
2 up-locks sensors.
2 down lock sensors.
If you have a disagreement on the up/down lock sensors on one landing gear. What indication will be shown?
The one that coincides with landing gear lever position will be considered valid.
If you get 2 wow switches failed on the same leg on ground. What caution do you get?
LG NO DISPATCH
If you get 2 wow switches failed on the same leg in flight. What caution do you get? And what happens with the landing gear?
Landing gear gets stuck in down position.
LG WOW SYS FAIL
(Retract only if needed for performance)
If you get aural ”LANDING GEAR”
In what three occasions is it not possible to silence that aural warning?
- Flaps 5 or Full
- Flaps 1-4 and
RA < 700 and
If Dual eng TLA <45
If OEI TLA < 60 - RA fail
(If dual fail only silence on flaps 1-4)
Describe Locked wheel protection:
Compares
wheel speeds between iboard wheels left and right.
Wheel speeds between outboard wheels left and right.
If one is 33 % of the other - releasing pressure.
Active > 30kt
When is anti skid protection active?
10 kt
When is touch down protection deactivated after landing?
3s or
50kt wheel speed
Below what wheel speed is Auto Brake armed?
< 60 kt
Above what wheel speed is Auto Brake applied?
> 60 kt
What is needed with TLA for application of the Auto Brake?
Idle or REV
Landing mode.
How many seconds after touch down do you get Auto Brake application?
2 s
How much do you need to apply brakes in order to disengage Auto Brake during landing?
20 %
Which MAU hosts Brake Control Module 1?
MAU 1
Which MAU hosts Auto Brake Module and Brake Control Module 2?
MAU 2
Which hyd sys for nose wheel steering?
Hyd Sys 2
Up to which speed do you have 76 degrees of nose wheel steering?
40 kt
What is the lowest angle of nose wheel steering?
7 degrees
Below which steering angle is the nose wheel steering less sensitive?
10 degrees
In what three cases does the system revert to free wheel steering?
- Air-Ground Failure
- Nose Wheel > 76 degrees
- Nose wheel steering system failure
