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Allegiant A320 Systems (2024) > Landing Gear > Flashcards

Landing Gear Flashcards

1
Q

Q1 | FORWARD INSTRUMENT PANEL

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

[ FCOM-DSC-32-10-10 ]

A
  • Provide sequencing, operation, monitoring, and indications for the landing gear
  • Provide aircraft “In Flight” or “On the Ground” signals to other aircraft systems

[ FCOM-DSC-32-10-10 ]

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2
Q

Q2 | FORWARD INSTRUMENT PANEL

When does the red arrow in the LND panel illuminate?

[ FCOM-DSC-32-10-40, FCOM-DSC-32-10-50 ]

A

Below 750 feet RA, when the aircraft is in the landing configuration and the landing gear is not locked down

[ FCOM-DSC-32-10-40, FCOM-DSC-32-10-50 ]

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3
Q

Q3 | FORWARD INSTRUMENT PANEL

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

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A

Nothing - A safety valve shuts off hydraulic power to the landing gear system when airspeed is above 260 knots

[ FCOM-DSC-32-10-10 ]

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4
Q

Q4 | FORWARD INSTRUMENT PANEL

What do the red UNLK lights indicate?

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A

The landing gear is not locked in the selected position

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5
Q

Q5 | FORWARD INSTRUMENT PANEL

What controls and manages all braking functions?

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A
  • Normal Brakes: Braking Steering Control Unit (BSCU)
  • Alternate Brakes: Alternate Braking Control Unit (ABCU)

[ FCOM-DSC-32-30-10 ]

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6
Q

Q6 | FORWARD INSTRUMENT PANEL

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

[ FCOM-DSC-32-30-10, FCOM-DSC-32-30-20 ]

A
  • Nosewheel steering deactivated
  • Brake pressure is supplied by the Yellow hydraulic system
  • Anti-skid is deactivated
  • BSCU and ABCU are depowered
  • A 1000 psi pressure limiting valve helps prevent wheel lock up

[ FCOM-DSC-32-30-10, FCOM-DSC-32-30-20 ]

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7
Q

Q7 | FORWARD INSTRUMENT PANEL

Which hydraulic systems provide pressure to the brakes?

[ FCOM-DSC-32-30-10 ]

A
  • Normal brakes – Green
  • Alternate brakes – Yellow backed up by a hydraulic accumulator

[ FCOM-DSC-32-30-10 ]

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8
Q

Q8 | FORWARD INSTRUMENT PANEL

What are the four modes of braking?

[ FCOM-DSC-32-30-10 ]

A
  • Normal braking
  • Alternate braking with antiskid
  • Alternate braking without antiskid (max brake pressure 1000 psi)
  • Parking brake

[ FCOM-DSC-32-30-10 ]

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9
Q

Q9 | FORWARD INSTRUMENT PANEL

When do the Autobrakes activate on landing if armed?

[ FCOM-DSC-32-30-10 ]

A

When the ground spoilers deploy

[ FCOM-DSC-32-30-10 ]

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10
Q

Q10 | FORWARD INSTRUMENT PANEL

What is the difference between LOW and MED AUTO BRK?

[ FCOM-DSC-32-30-20 ]

A
  • LOW - progressive pressure applied to brakes 4 seconds after ground spoilers deploy to decelerate at 5.6 FPS
  • MED - progressive pressure applied to brakes 2 seconds after ground spoilers deploy to decelerate
    at 9.8 FPS

[ FCOM-DSC-32-30-20 ]

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11
Q

Q11 | FORWARD INSTRUMENT PANEL

What does the AUTO BRK green DECEL light indicate?

[ FCOM-DSC-32-30-20 ]

A

Actual rate of deceleration is within 80% of the selected rate

[ FCOM-DSC-32-30-20 ]

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12
Q

Q12 | FORWARD INSTRUMENT PANEL

What is the Takeoff setting for Auto Brakes?

[ FCOM-DSC-32-30-20 ]

A

MAX

[ FCOM-DSC-32-30-20 ]

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13
Q

Q13 | FORWARD INSTRUMENT PANEL

What will cause the MAX AUTO BRK to activate on an RTO?

[ FCOM-DSC-32-30-10, FCOM-DSC-27-10-20 ]

A
  • Airspeed above 72 knots, and
  • Thrust Levers at IDLE, and
  • Ground spoiler extension

[ FCOM-DSC-32-30-10, FCOM-DSC-27-10-20 ]

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14
Q

Q14 | FORWARD INSTRUMENT PANEL

If you lose Green hydraulic pressure, will you have Auto Brakes?

[ FCOM-DSC-32-30-10 ]

A

No, not with the Alternate Brake system

[ FCOM-DSC-32-30-10 ]

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15
Q

Q15 | FORWARD INSTRUMENT PANEL

Is Anti-skid available with Alternate Brakes?

[ FCOM-DSC-32-30-10 ]

A

Yes, if certain conditions are met

[ FCOM-DSC-32-30-10 ]

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16
Q

Q16 | FORWARD INSTRUMENT PANEL

With spoilers not armed will the spoilers deploy for an RTO?

[ FCOM-DSC-27-10-20 ]

A

Yes – when at least one engine is in reverse

[ FCOM-DSC-27-10-20 ]

17
Q

Q17 | FORWARD INSTRUMENT PANEL

How many brake applications are available with accumulator pressure?

[ FCOM-DSC-32-30-10 ]

A

Approximately 7 full applications of brake pedals or parking brake or any combination thereof

[ FCOM-DSC-32-30-10 ]

18
Q

Q18 | FORWARD INSTRUMENT PANEL

What does the BRAKES & ACCU PRESS triple indicator indicate?

[ FCOM-DSC-32-30-20 ]

A
  • Yellow hydraulic pressure delivered to the left and right brakes
  • Yellow system brake accumulator pressure

[ FCOM-DSC-32-30-20 ]

19
Q

Q19 | PARKING BRAKE

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

[ FCOM-DSC-32-30-10 ]

A

With the Yellow hydraulic system electric pump

[ FCOM-DSC-32-30-10 ]

20
Q

Q20 | PARKING BRAKE

How do you verify the Parking Brake is set?

[ FCOM-DSC-32-30-20 ]

A
  • ECAM PARKING BRK memo
  • Triple indicator brake pressure

[ FCOM-DSC-32-30-20 ]

21
Q

Q21 | PARKING BRAKE

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

[ FCOM-DSC-32-30-10 ]

A

Yes, via the brake pedals, but you must have green hydraulic pressure

[ FCOM-DSC-32-30-10 ]

22
Q

Q22 | PARKING BRAKE

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

[ FCOM-DSC-32-10-40 ]

A
  • Removes Green hydraulic pressure
  • Opens gear doors
  • Releases the uplocks

[ FCOM-DSC-32-10-40 ]

23
Q

Q23 | PARKING BRAKE

How many turns of the Gravity Gear Extension hand crank does it take to lower the gear manually?

[ FCOM-DSC-32-10-40 ]

A

3 clock-wise turns

[ FCOM-DSC-32-10-40 ]

24
Q

Q24 | NOSE WHEEL STEERING

What hydraulic system supplies nose wheel steering?

[ FCOM-DSC-32-20-10 ]

A

Yellow

[ FCOM-DSC-32-20-10 ]

25
Q

Q25 | NOSE WHEEL STEERING

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

[ FCOM-DSC-32-20-10 ]

A

+/- 75°

[ FCOM-DSC-32-20-10 ]

26
Q

Q26 | NOSE WHEEL STEERING

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

[ FCOM-DSC-32-20-10 ]

A

Starts reduction at 40 knots and progressively reduces to zero degrees at 130 knots

[ FCOM-DSC-32-20-10 ]

Allegiant A320 Systems (2024) (18 decks)

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