Forward Instrument Panel - Rev 04 Flashcards

1
Q

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

(FCOM-DSC-32-10-10)

A

a. Provide sequencing, operation, monitoring, and indications for the landing gear

b. Provide aircraft “In Flight” or “On the Ground” signals to other aircraft systems

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2
Q

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

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3
Q

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

(FCOM-DSC-32-10-10)

A

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

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4
Q

What do the red UNLK lights indicate?

(FCOM-DSC-32-10-40)

A

The landing gear is not locked in the selected position

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5
Q

What controls and manages all braking functions?

(FCOM-DSC-32-30-10)

A

a. Normal Brakes: Braking Steering Control Unit (BSCU)
b. Alternate Brakes: Alternate Braking Control Unit (ABCU)

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6
Q

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

(FCOM-DSC-32-30-10, FCOM-DSC-32-30-20)

A

a. Nosewheel steering deactivated

b. Braking pressure is supplied by the Yellow hydraulic system

c. Anti-skid is deactivated

d. BSCU and ABCU are depowered

e. A 1,000 psi pressure limiting valve helps prevent wheel lock up

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7
Q

Which hydraulic systems provide pressure to the brakes?

(FCOM-DSC-32-30-10)

A

a. Normal brakes – Green

b. Alternate brakes – Yellow backed up by a hydraulic accumulator

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8
Q

What are the four modes of braking?

(FCOM-DSC-32-30-10)

A

a. Normal braking

b. Alternate braking with antiskid

c. Alternate braking without antiskid (max brake pressure 1000 psi)

d. Parking brake

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9
Q

When do the Autobrakes activate on landing if armed?

(FCOM-DSC-32-30-10)

A

When the ground spoilers deploy

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10
Q

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

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11
Q

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

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12
Q

What is the Takeoff setting for Auto Brakes?

(FCOM-DSC-32-30-20)

A

MAX

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13
Q

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

(FCOM-DSC-32-30-10, FCOM-DSC-27-10-20)

A

a. Airspeed above 72 knots, and

b. Thrust Levers at IDLE, and

c. Ground spoiler extension

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14
Q

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

(FCOM-DSC-32-30-10)

A

No, not with the Alternate Brake system

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15
Q

Is Anti-skid available with Alternate Brakes?

(FCOM-DSC-32-30-10)

A

Yes, if certain conditions are met

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16
Q

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

17
Q

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

18
Q

What does the BRAKES & ACCU PRESS triple indicator indicate?

(FCOM-DSC-32-30-20)

A

a. Yellow hydraulic pressure delivered to the left and right brakes

b. Yellow system brake accumulator pressure