Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Operations manuals > Landing Gear > Flashcards

Landing Gear Flashcards

1
Q

When does the landing gear system automatically switch from LGCIU?

A

At the end of each retraction and automatically if a failure is detected.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the function of the safety valve in the landing gear system?

A

Shuts off hydraulic pressure to the actuators when the aircraft speed exceeds 260kts and restores pressure with the landing gear lever down and speed below 260kts.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

By which means does the landing gear extend when using the gravity gear extension?

A

Combination of gravity, aerodynamic force and locking springs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

By which LGCIU are the lights on the landing gear indicator controlled?

A

LGCIU 1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What do the LGCIUs use to supply air/ ground data?

A

The shock absorber position.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

When does the master BSCU automatically change over?

A

At each down selection of the landing gear lever or when a fault is detected.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

By what are the landing gear and doors controlled?

A

Two LGCIU’s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How does the anti skid system determine wheel slip ratio?

A

By comparing aircraft speed from the ADIRUs to the tire speed from tachometers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the deceleration rate and when does the autobrake start with LO selection?

A

4 seconds after spoilers deploy. Rate 1.7m/s2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the deceleration rate and when does the autobrake start with MED selection?

A

2 seconds after ground spoilers deploy. Rate is 3m/s2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the deceleration rate and when does the autobrake start with MAX selection?

A

As soon as ground spoilers deploy, max braking applied.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

If flight is conducted with the L/G down, and a failure happens that causes the aircraft to revert to alternate law, what will happen?

A

The aircraft will revert to direct law immediately.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

After how many seconds must the landing gear retraction or extension sequence complete before a warning comes up?

A

30 seconds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Which warning comes up if the gear retraction sequence has not been completed in 30 seconds?

A

Gear not UPLOCKED

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which warning comes up if the landing gear extension sequence is not completed in 30 seconds?

A

Gear not DOWNLOCKED

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

When do you get the brakes hot message?

A

If at least one brake is >300C

17
Q

Why must the brake temperature be below 300 degrees prior to takeoff?

A

To prevent ignition of any hydraulic fluid that leaks on the brakes.

18
Q

When does the BSCU do a self test?

A

When normal braking is active and at least one engine is running and the BSCU receives a gear DOWNLOCKED signal from the LGCIUs.

19
Q

When is maintenance to the brakes required?

A
  • one brake >600C and other brake on same gear 150
  • Average temp of one gear is 200C more than the other
  • Any brake temp >900C
  • a fuse plug has melted
19
Q

How are the landing gear and doors controlled and actuated?

A

Electrically controlled and hydraulically actuated

20
Q

What is the function of the LGCIUs?

A
  • control extension/ retraction of the gear and operation of the doors
  • supply information about gear to ECAM
  • sends signals aircraft in air or ground to other systems
21
Q

What information of the landing gear is send to the LGCIUs?

A
  • locked down/ up
  • shock absorbers compressed/ extended
  • landing gear doors open/ closed
22
Q

Which information about the cargo doors is send to the LGCIUs?

A

Position of manual selector valves, locking shaft, locking handle, safety shaft, door sills.

23
Q

Which information about the flaps is send to the LGCIUs?

A

Signals from 4 flap disconnect proximity switches

24
Q

Which LGCIU is connected to the landing gear panel?

A

Lgciu1

25
Q

When does the red arrow on the landing gear selection panel come on?

A

When the landing gear is not locked down and the aircraft is in the landing config and a red warning appears on ECAM.

26
Q

What controls the nosewheel steering?

A

BSCU

27
Q

What is the nosewheel steering angle from the rudder pedals?

A

+/- 6 degrees

28
Q

What is the nosewheel steering angle from the handwheel?

A

+/-75 degrees

29
Q

Between which speeds does NWS angle reduce with rudder pedals?

A

0-130kts

30
Q

Between which speeds does NWS angle reduce with the handwheel?

A

0-80kts

31
Q

By which system is normal braking controlled?

A

BSCU

32
Q

By which system is alternate braking controlled?

A

ABCU

33
Q

What are the secondary functions of the BSCU?

A
  • check residual pressure in brakes
  • monitor brake temperature
  • wheel speed info to other systems

Operations manuals (20 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions