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Gulfstream GIV > Landing Gear and Brakes > Flashcards

Landing Gear and Brakes Flashcards

1
Q

The normal, full-charge indication of the parking brake accumulator is:

A

3000 PSI @ 70 degrees F

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2
Q

How are the wheel well doors opened in preparation for the exterior preflight
inspection?

A

Through the auxiliary hydraulic pump, by activating the ground service
valve after the door pins have been inserted

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3
Q

During the exterior preflight inspection, what is the minimum acceptable reading for the brake accumulator pre-charge?

A

1200 psi at 70˚ F

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4
Q

How do you check the parking brake accumulator pre-charge?

A

Chock the aircraft and bleed off pressure by cycling the parking brake handle, or operate the dump valve in the nose wheel well

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5
Q

During the exterior preflight inspection, what is the minimum acceptable reading for the emergency landing gear extension air bottle?

A

3000 psi at 70˚ F

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6
Q

What is the function of the landing gear emergency reset handle?

A

To reset the 3 landing gear dump valves to hydraulic operation

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7
Q

Why must the nutcracker test switch not be pressed while on the ground?

A

Depressing the test switch simulates the nutcracker in-flight condition, which affects many airplane systems including momentarily unlocking the landing gear handle downlock solenoid

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8
Q

If the gear does not retract after takeoff but the handle moves to the “UP” position, what is the likely cause?

A

The landing gear pins have not been removed from the gear struts

Go to the QRH

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9
Q

With “BRAKE FAIL” CAS message, what is a likely result upon landing?

A

A complete loss of normal pedal braking

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10
Q

In a GIV with a brake-by-wire system, what is the recommended procedure if an “ANTI-SKID FAIL” CAS message illuminates during landing roll-out?

A

Turn off the anti-skid switch below 100kt

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11
Q

In a GIV with a HMAB brake system, what is the recommended procedure if an “ANTI-SKID FAIL” CAS message illuminates during landing roll-out?

A

Leave the anti-skid switch “ON”, as there may still be anti-skid protection on one pair of wheels (inboard or outboard)

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12
Q

If the landing gear handle is in the “UP” position, what is indicated by a red light in the handle?

A

One or more of the landing gear doors are not closed

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13
Q

If the landing gear handle is in the “DOWN” position, what is indicated by a red light in the handle?

A

One or more of the landing gear struts are not down and locked

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14
Q

How many emergency landing gear extensions are available with a fully
charged (3000 psi) nitrogen bottle?

A

One

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15
Q

What systems would be affected if the nutcracker system failed to shift to the
air mode after takeoff? (4)

A
  • Landing gear will not retract
  • Ground spoilers will deploy with switch armed and power levers at idle
  • Thrust reversers can be deployed in flight
  • Pressurization will remain at 0.25 psid and the cabin will climb at approximately same rate as aircraft
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16
Q

With a total loss of electrical power on the aircraft, what is the affect on the landing gear system?

A

The landing gear will operate normally but without indications

17
Q

How can a “STEER BY WIRE FAIL” CAS message be cleared?

A

Cycle the nosewheel steering switch

18
Q

What does the amber “ANTI SKID FAIL” CAS message indicate?

A

Indicates that the normal anti-skid control circuit has failed

19
Q

What does the amber “BRAKE FAIL” CAS message indicate (HMAB aircraft)?

A

Indicates loss of both combined and aux pressure while pedals are depressed

20
Q

What systems are affected if the nose wheel nutcracker fails to the air mode? (2)

A
  • Nose wheel steering circuit

- ‘G’ Monitor system

21
Q

What prevents blown tires with hot brakes?

A

Fuse plugs

22
Q

What is the purpose of the AUX Pump / Brake System Check during the Before Starting Engines checklist?

A

To test the automatic latching feature of the aux pump when combined or utility system pressure is not available for braking

23
Q

What is the purpose of the BRAKE NUTCRACKER O’RIDE switch (brake-by-
wire aircraft only)?

A

To allow the crew to perform a brake confidence check during flight

24
Q

What type of anti-skid protection is available with the use of the parking / emergency brake?

A

Anti-skid protection is not available with parking /emergency brake

25
Q

What is the maximum speed for lowering and raising the Landing Gear (VLO)?

A

VLO = 225 KCAS

26
Q

Anti-Skid Braking is available from which hydraulic systems?

A
  • Combined
  • Utility
  • Aux
27
Q

What is the maximum tire speed GIV SP (s/n 1214 & sub or non-SP with ASC 190)?

A

195 Kts GS

28
Q

What is the maximum speed for flying with the landing gear extended (VLE)?

A

VLE = 250 KCAS

29
Q

What is the maximum speed for alternate extension of the landing gear (operation of the emergency gear handle)?

A

175 KCAS

Gulfstream GIV (21 decks)

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