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Airbus Alaska > SH Chapter 13 - Landing Gear > Flashcards

SH Chapter 13 - Landing Gear Flashcards

1
Q

1) What is the function of the two Landing Gear Control and Interface Units (LGCIU)?

A
  • Extension and retraction of gear
  • Operation of gear doors
  • Supplies info about gear to ECAM and sends signals of whether the aircraft is in flight or on ground
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2
Q

2) When does the red arrow in the LND panel illuminate?

A

When the gear is not down and locked and aircraft is in landing configuration below 750’AGL.

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3
Q

3) What happens if your airspeed is 280 knots and you place the Landing Gear lever to DOWN?

A

Safety valve cuts off hydraulic supply to gear system

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4
Q

4) What do the red UNLK lights indicate?

A

Gear is not locked in the selected position.

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5
Q

5) What controls and manages all braking functions?

A

Brake and Steering Control Unit (BSCU)

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6
Q

6) What happens when you switch the A/SKID & N/W STRG to OFF?

A
  • Anti-skid deactivated
  • Nosewheel steering lost
  • Differential braking remains available through pedals
  • Triple indicator displays yellow (alternate) system brake pressure
  • BSCU and ASCU are deactivated
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7
Q

7) What are the four modes of braking?

A
  • Normal
  • Alternate with anti-skid
  • Alternate without anti-skid
  • Parking brake
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8
Q

8) Which hydraulic systems provide pressure to the brakes?

A
  • Green

- Alternate uses yellow backed up by hydraulic accumulator

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9
Q

9) When do the Autobrakes activate on landing if armed?

A
  • LO or MED when ground spoilers are commanded
  • MAX when speed is above 40 knots and ground spoilers commanded (Ground spoilers will not be commanded unless over 72 kts on a RTO)
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10
Q

10) What is the difference between LOW and MED AUTO BRK?

A

LO sends progressive pressure to brakes 4 seconds after spoilers deploy.
MED is 2 second after.

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11
Q

11) What does the AUTO BRK green DECEL light indicate?

A

Deceleration is 80% of selected rate

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12
Q

12) What is the Takeoff setting for Auto Brakes?

A

MAX

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13
Q

13) What will cause the MAX AUTO BRK to activate on a RTO?

A

Once ground spoilers are commanded and speed above 40kts. Just remember ground spoilers do not deploy on an RTO unless speed above 72kts.

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14
Q

14) If you lose Green hydraulic pressure will you have autobrakes?

A

No

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15
Q

15) Is Anti-skid available with Alternate Brakes?

A

Yes

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16
Q

16) How many brake applications are available with accumulator pressure?

A

At least 7

17
Q

17) What does the BRAKES & ACCU PRESS triple indicator indicate?

A

ACCU PRESS displays pressure in yellow brake accumulator

BRAKES is only indicated when yellow hydraulic system controls brake pressure (in alternate or park)

18
Q

18) How do we charge the yellow system accumulators?

A

Running the yellow electric pump

19
Q

19) When brake accumulator pressure is low, how is it recharged?

A

Ensure you obtain ground clearance first, then run the yellow electric electric pump

20
Q

20) If the ACCU PRESS indicator is low and an external walk-around is to be completed, what should you do?

A

Ensure you obtain ground clearance then run the yellow electric pump

21
Q

21) How do you verify the Parking Brake is set?

A

ECAM PARK BRK showing and ACCUM PRESS shows pressure

22
Q

22) If the parking brake is activated and no yellow hydraulic or accumulator pressure is available, do you still have available braking?

A

Have normal braking as long as you have green hydraulic pressure.

23
Q

23) What 3 things occur when you turn the Gravity Gear Extension hand-crank?

A
  • Isolates the green hydraulics from system
  • Unlocks the gear doors
  • Allows gravity to drop the gear
24
Q

24) How many turns of the Gravity Gear Extension handcrank does it take to lower the gear manually?

A

3

25
Q

25) What hydraulic system supplies nose wheel steering?

A

Yellow

26
Q

26) The steering hand wheels can steer the nose wheel up to how much in each direction?

A

75

27
Q

27) When using the rudder pedals for steering, when does the steering angle begin to reduce?

A

20kts

Airbus Alaska (18 decks)

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