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E190 Type Rating > Landing Gear And Brakes > Flashcards

Landing Gear And Brakes Flashcards

1
Q

When will the green towing light show?

A
  • steering has been disengaged
  • park brake not on
  • main brakes not on
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2
Q

How many WOW sensors are on each wheel?

A

2

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3
Q

How is the landing gear held in the up position?

A

By uplocks

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4
Q

How is the landing held in the down position?

A

By the downlock springs

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5
Q

What hydraulic systems power the brakes?

A

System 1 = outboard brakes
System 2 = inboard brakes

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6
Q

What are the 4 Main function of the brake control modules (BCMs)?

A

Locked wheel protection
Anti skid protection
Automatic wheel braking
Touchdown protection

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7
Q

Above what speed is locked wheel protection active?

A

30kts

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8
Q

Above what speed is anti skid protection active?

A

10kts

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9
Q

What is the purpose of automatic wheel braking?

A

Prevents the MAIN landing gear from being retracted with the wheels spinning

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10
Q

What is the purpose of touchdown protection?

A

Prevents the aircraft from touching down with the main landing gear brakes applied

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11
Q

When is touchdown protection deactivated?

A

Three seconds after WOW detected or when wheel speed is above 50kts

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12
Q

How many full emergency brake applications can the accumulators supply?

A

6

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13
Q

When in landing mode when will the auto brakes be armed?

A

WOW indication = inflight
Wheel speed = below 60kts
Brake control system = no faults
Brake pedal position = not pressed
Thrust lever position = any

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14
Q

When in RTO mode when will the auto brakes be armed?

A

WOW indication = ground
Wheel speed = below 60kts
Brake control system = no faults
Brake pedal system = any
Thrust lever position = idle or reverse

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15
Q

When in landing and RTO mode when will the auto brakes be applied?

A

WOW indication = on ground (MLG must be WOW for at least 2 seconds when in landing mode)
Wheel speed = above 60kts
Brake control system = no faults
Brake pedal position = not pressed
Thrust lever position = idle or reverse

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16
Q

When will auto brakes be disarmed when in landing mode?

A

Brake control system = faults detected
Brake pedal position = pressed more than 20%
Thrust levers = above idle

17
Q

When will autobrakes be disarmed when in RTO mode?

A

WOW indication = in flight
Brake control system = faults detected below 60kts
Brake pedal position = pressed
Thrust lever position = above idle

18
Q

How is nose wheel steering engaged?

A
  • hydraulic system 2 pressurised
  • external steering disengage switch is engaged
  • handwheel pressed
19
Q

When is free wheel steering mode used?

A

For towing or if the normal steering system fails

E190 Type Rating (20 decks)

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