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A320 > Landing Gear & Brakes > Flashcards

Landing Gear & Brakes Flashcards

1
Q

To prevent exceeding VFE, a safety valve isolates the GREEN hydraulic supply above what speed?

A

260 kts

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2
Q

What hydraulic system powers the main gear?

A

GREEN

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3
Q

What hydraulic system and computer powers the nose gear?

A

YELLOW and the Brake Steering Control Unit (BSCU)

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4
Q

What do the Landing Gear Control and Interface Units (LGCIU) do?

A

Control door and gear movement

Monitor gear and door positions through prox sensors

Gear info to ECAM

Sends gnd/flt signals to other aircraft

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5
Q

When do the Landing Gear Control and Interface Units (LGCIU) alternate control?

A

At the end of each cycle

OR

During failure

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6
Q

What are the 5 braking modes?

A

Normal

Alt with antiskid

Alt without antiskid

Accumulator only braking

Parking Brake

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7
Q

In the WHEELS pages what do the triangles represent?

A

LEFT = Landing Gear Control and Interface Units (LGCIU) 1 sensor

RIGHT = Landing Gear Control and Interface Units (LGCIU) 2 sensor

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8
Q

What is the action item when GEAR UPLOCK is displayed?

A

Do NOT raise the gear lever

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9
Q

What does a GREEN ARC on the BRAKES page represent?

A

Brake temp >100C

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10
Q

What does a AMBER ARC on the BRAKES page represent?

A

Brake temp >300C

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11
Q

What does the REL stand for?

A

Brakes Released

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12
Q

What does the N/W STEERING memo mean?

A

Failure of nosewheel steering system

Failure of both BSCUs

Low Yellow pressure

A/SKID and N/W STGR switch selected off

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13
Q

What does the ANTI SKID memo mean?

A

Both BSCU channels fail

A/SKID and N/W STGR switch selected off

Antiskid Failure

Low Yellow pressure

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14
Q

What does the NORM BRK memo mean?

A

GREEN = Auto and Alternate brakes failure

AMBER = Loss of Normal Braking from BSCU failure or low Green pressure

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15
Q

What does the ALTN BRK memo mean?

A

GREEN = Alternate braking available, normal and anti-skid failure

AMBER = Alternate braking failure

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16
Q

How are the Landing Gear Position indicators signaled?

A

LGCIU 1 ONLY

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17
Q

When and only when will MAX autobrakes be selected?

A

TO only

18
Q

What does the A/SKID & N/W STRG switch do?

A

Provides power to both BSCUs

19
Q

What system powers the parking brake?

A

YELLOW

20
Q

What system powers the wheels brakes?

A

GREEN

21
Q

When is NORMAL BRAKING available?

A

GREEN pressure available

At least one BSCU channel functioning

*Antiskid only works in Normal braking

22
Q

When in the Green arc, how long can the parking brake provide pressure?

A

12 hours

23
Q

How would you pressurize the YELLOW system for the parking brake?

A

Yellow Electric Pump

*get ground clearance first

24
Q

What do Brake Pressure gauges represent?

A

Parking Brake (yellow) pressure

25
Q

What 2 systems are essential for an aborted TO?

A

Auto Brakes and Spoilers

26
Q

When will Auto Brakes engage during a rejected TO?

A

Spoilers activated

Thrust to IDLE

MAX auto brakes apply auto with spoiler activation

27
Q

What is the steering limit of the rudder pedals?

A

6 degrees either direction

gradually reduced at 40 knots to 0 at 140

28
Q

What does AUTO/BK LO do?

A

Activates 4 seconds after ground spoiler extension

1.7 m/sec deceleration

29
Q

What does AUTO/BK MED do?

A

Activates 2 seconds after ground spoiler extension

3 m/sec deceleration

30
Q

When will DECEL light activate?

A

80% target rate

31
Q

How do you deactivate auto brakes?

A

Turn off AUTO/BRK pb

Apply pressure to at least one brake pedal (both for MAX)

Retract ground spoilers

32
Q

When would you call mx for abnormal brake temp after landing?

A

> 600C

<60C

33
Q

When would Alternate Braking with AntiSkid be active?

A

Low Green Pressure

*no AutoBrakes

34
Q

When would Alternate Braking withOUT AntiSkid be active?

A

Low Green Pressure

Loss of BSCU

35
Q

When would Accumulator only braking be used?

A

Low GREEN and YELLOW Pressure

Accumulator provides 7 full brake applications on YELLOW system

36
Q

When would the RED arrow illuminate next to the Gear Selector?

A

Gear not down and locked at 750 AGL

37
Q

Why would recycling the gear help a gear problem?

A

Recycling the gear switches to the other LGCIU

38
Q

What if only one Green gear indicator is present?

A

This is sufficiant to conclude that the gear is down

However, the doors will not close

39
Q

What other systems are unavailable with the loss of both LCGIUs?

A

Thrust Reversers

GPWS

40
Q

What other systems are unavailable with the loss of both BSCUs? Or turning off the A/SKID & N/W STRG switch.

A

Nosewheel Steering

Normal Braking

Antiskid

Autobrakes

A320 (33 decks)

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