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KV Preparation > Landing gear and brakes > Flashcards

Landing gear and brakes Flashcards

1
Q

What conditions are necessary for the green towing light to Illuminate for the nose gear?

A

Emergency brake off
brake pressure off
steer off on EICAS

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2
Q

How do you disconnect nosewheel steering?

A

button behind the control wheel
or red switch on the nose for ground crew

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3
Q

what conditions are necessary for safe pushback?

A

GREEN towbar light
STEER OFF on EICAS
parking brake off

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4
Q

What system powers Nosewheel steering?

A

HYD 2

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5
Q

What system powers the landing gear retract/extend?

A

HYD 2

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6
Q

How do you engage nosewheel steering?

A

Tiller (steering handle) must be pressed down

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7
Q

When do you use handwheel steering?

A

low speed taxi

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8
Q

Is there protection for the nosewheel steering?

A

yes, as speed increases the steering limit decreases

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9
Q

What disengages rudder steering?

A

activation of nosewheel steering

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10
Q

The main landing gear is held in the up position by?

A

Mechanical uplocks

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11
Q

Turn Radius for E170?

A

54’8

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12
Q

Turn Radius for E175

A

59’2

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13
Q

What determines min turn radius for the standard wingtips?

A

Horizontal stabilizer tip

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14
Q

What determines min turn radius for the extended wingtips?

A

Wingtips

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15
Q

What keeps the landing gear down and locked?

A

Downlock springs

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16
Q

When would the landing gear aural warnings come on?

A

-When flaps are set 1-4 and below 700 ft with power lever reduced gear not down
-flaps 5 or FULL landing gear not down

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17
Q

If one of the landing gear lights on EICAS are RED, what does that mean?

A

Disagreement between gear position and handle position

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18
Q

What color are gear Indications on EICAS during transition?

A

Amber Boxes chevron

19
Q

How is landing gear operated?

A

Electrically commanded, Hydraulically activated

20
Q

What are 3 landing gear extension modes?

A

Normal, Electrically overide, Alternate gear extension

21
Q

Describe normal gear extension

A

Lever positioned to Down, releases hydraulic pressure from uplocks and retraction actuators

22
Q

Describe Alternate gear extention

A

Pulling out on the lever manually disconnects the landing gear uplock and releases hydraulic pressure

23
Q

If you’ve just manually extended the gear using Alternate gear extension, why might the Landing gear position still show RED?

A

check gear lever position (must be down)
gear free falls and you might need to yaw the aircraft back and forth to set the downlock springs

24
Q

When Might you use Alternate gear extension?

A

If the electrical system fails or malfunctions, or hydraulic pressure not available.

25
Q

When would electrical override be used for gear extension?

A

If the control box or Proximity Sensor electronics module fails

26
Q

What is the PSEM?

A

PROXIMITY SENSOR ELECTRONICS MODULE
(FCM for the landing gear)

27
Q

What is the purpose of the LG WRN INHIB?

A

to inhibit landing gear warnings in the event of dual radio altimeter fail.

28
Q

Can the LG WRN INHIB Button be pressed to stop unwanted landing gear warnings?

A

ONLY if dual radio altimeter failure.

29
Q

What is another purpose of the parking Brake?

A

can be used as an emergency brake. or accumulator pressure in event of hyd failure.

30
Q

What is the purpose of the Red DN LOCK RLS button next to landing gear?

A

manually releases the landing gear lever lock if gear wont release on takeoff.

31
Q

After takeoff if the landing gear lever wont move to up position, what might you try?

A

push the DN LOCK RLS button.

32
Q

What Hyd systems power the brakes?

A

1 & 2

33
Q

Hyd system 2 powers the outboard brakes? T/F

A

FALSE

34
Q

HYD System 1 powers the outboard brakes? T/F

A

TRUE

35
Q

How is antiskid turned off?

A

Pilot unable to turn off…

36
Q

The Landing and RTO autobrake will be commanded off for the following:

A

-switch is OFF
-any brake pressure is applied on feet
-power lever advanced

37
Q

can parking brake be used to stop the aircraft if there is a hydraulic failure?

A

YES

38
Q

How many Full applications on parking brake if hyd pressure fail?

A

6

39
Q

How can you still have hydraulic pressure for parking brake in event of hydraulic fail?

A

Brake accumulators

40
Q

What conditions must be met for autobrake to function for RTO?

A

power lever IDLE/REV
wheel speed greater than 60kt
brakes not applied by feet

41
Q

There is anti-lock brake protection while using parking brake? T/F

A

false

42
Q

When is Anti skid deactivated?

A

Below 10KTS

43
Q

how are brakes commanded?

A

Brake by wire

KV Preparation (17 decks)

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