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Sierra West Airlines > PTM Ch. 14 Landing Gear and Brakes > Flashcards

PTM Ch. 14 Landing Gear and Brakes Flashcards

1
Q

How many wheels do we have?

A

6

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2
Q

Which gear doors remain open upon extension?

A

Nose gear

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3
Q

A GEAR DOOR POSITION annunciator will illuminate when?

A

When any of the main gear doors are unlocked when ON THE GROUND ONLY

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4
Q

What centers the nose gear at liftoff?

A

Snubber

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5
Q

How are the landing gear powered?

A

Electrically controlled and hydraulically actuated.

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6
Q

How many hydraulic actuators are attached to each gear?

A

2

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7
Q

Which actuators are pressurized during retraction?

A

Both

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8
Q

Which actuators are pressurized during extension?

A

The outside actuators on each main and the left on the nose gear.

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9
Q

Gear are locked down how?

A

Over center condition of drag brace along with one extension actuator

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10
Q

How are gear locked up?

A

Mechanical up lock

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11
Q

Gear control and indication is powered by what?

A

Left essential bus transferrable to the right

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12
Q

A gear warning horn will actuate if all 3 gear are not down and locked AND:

A

Flaps are lowered slightly beyond 1/2 or,

Either power lever is retarded to flight idle

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13
Q

When on the ground, what holds the landing gear lever in the down position?

A

A solenoid-actuated locking device

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14
Q

When airborne, what releases the solenoid-actuated locking device?

A

A squat switch on the left main gear

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15
Q

Should the gear lever ever be raised when on the ground?

A

No

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16
Q

How is it possible to override the solenoid-actuated locking device that locks the landing gear lever down on the ground?

A

OVERRIDE lever can release the locking device

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17
Q

When the gear is down what remains energized to hold constant pressure on gear as long as electrical power and hydraulic pressure are available?

A

Selector valve

18
Q

What mechanically locks the gear down?

A

Gear drag braces move over-center

19
Q

Once the gear is up and locked, what happens with the selector valve?

A

Returns to neutral position forming a fluid lock.

20
Q

Is there any provision for gear retraction in a hydraulic or DC power loss?

A

No

21
Q

Emergency gear extension is necessary for what?

A

DC power loss or hydraulic pressure loss.

22
Q

Instructions for emergency landing gear extension can be found in what three places?

A
  1. Emergency procedures checklist
  2. Emergency procedures section of AFM
  3. On the emergency gear extension placard in the cockpit
23
Q

NWS has a normal range of:

A

L or R 10 degrees

24
Q

Max range with PARK button is:

A

L or R 63 degrees

25
Q

Is takeoff allowed with hydraulic system failure?

A

No

26
Q

Can NWS be MEL’d?

A

Yes

27
Q

A Green NWS annunciator is illuminated when?

A

When NWS is armed

28
Q

Once NWS is armed how do you use NWS?

A

Press the button in the left of the power lever OR, placing the right speed lever to LOW for 10 degrees

29
Q

How do you use full NWS authority?

A

NWS armed with PARK button pressed

30
Q

How long does it take for full PARK authority to be active?

A

About 7 seconds

31
Q

The green NOSE STEERING or NWS annunciator can also flash. What does this mean?

A

Nose wheel has turned more than 3 degrees beyond the angle selected by rudder pedals

32
Q

What should you do if the green NOSE STEERING or NWS annunciator is flashing?

A

Place NWS SWITCH to off.

33
Q

The amber NOSE STEER FAIL annunciator illuminates when?

A

If hydraulic pressure is available to the nose wheel steering actuator with the system ON or OFF and engaged.

34
Q

If NOSE STEER FAIL illuminates in flight what should you do?

A

Land with NWS ON

35
Q

If NOSE STEER FAIL illuminates on taxi out what should you do?

A

Keep the nose steering ON, and write it up.

36
Q

Is the brake system a part of the main hydraulic system?

A

No

37
Q

Do we have anti-skid brakes?

A

No

38
Q

What prevents both pilots from actuating brakes?

A

A shuttle valve

39
Q

How do you use the parking brake?

A

Apply brakes and pull parking brake knob

40
Q

NWS has a normal operating range of what according to the PTM?

A

12 degrees left or right of center (PTM 14-8)

41
Q

A flashing NWS FAIL light indicates what?

A

A fault exists and the system disengaged.

42
Q

Nose wheel steering operation after gear retraction is prevented by what?

A

Control circuits being opened by gear retraction.

Sierra West Airlines (16 decks)

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