Landing Gear

Question 1

During normal operations the landing gear system is _____ controlled and ______ actuated

Answer 1

Electrically controlled and hydraulically actuated

Question 2

The _____ holds the main landing gear in the retracted position

Answer 2

Up lock

Question 3

The three operations of the landing gear are:

Answer 3

Normal extension/retraction
Electrical override
Alternate gear extension

Question 4

The down lock release button on the landing gear does what?

Answer 4

Releases the locking solenoid, allowing the landing gear to be retracted

Question 5

The main brakes are ______ powered and _____ controlled

Answer 5

Electrically powered and hydraulically controlled

Question 6

The anti-skid system prevents _____

Answer 6

The wheels from skidding when brakes are applied

Question 7

(T/F) The emergency parking brake can provide braking without hydraulic pressure

Answer 7

True

Question 8

Brake control module 1 (BCM 1) controls the ______ brakes

Brake control module 2 (BCM 2) controls the ______ brakes

Answer 8

BCM 1 Outboard brakes

BCM 2 Inboard brakes

Question 9

Anti-skid protection is active when wheel speed is above __ kts

Answer 9

10 kts

Question 10

(T/F) The pilots should tap the brakes after liftoff to stop the wheels from spinning before they’re retracted

Answer 10

False. The brakes will automatically apply pressure for 4 seconds to stop the wheels from spinning

Question 11

(T/F) The brake system is depressurized during flight

Answer 11

True

Question 12

The emergency parking brake can still be used even without hydraulic pressure. They actuate the brakes _____ and get hydraulic pressure from the _____.

Answer 12

The actuate the brakes mechanically and get hydraulic pressure from the accumulator

Question 13

Brake temperature is green up to ____C. This means brakes are able to ______

Answer 13

251C

Absorb maximum kinetic energy

Question 14

Brake temperatures appear amber from ____C to ____C. This means that _____

Answer 14

252C to 840C

Cooling is required

Question 15

The BRK OVERHEAT _____ message will illuminate when the brake temperature has exceeded the normal operating range. This occurs at ____C

Answer 15

Caution message at 690C

Question 16

If the brake temperature of ___C the _____ message LG TEMP EXCEEDANCE will illuminate. The only way to remove this message is to ____

Answer 16

750C
Advisory message
Power down the aircraft

Question 17

The maximum steering angle using the hand wheel is ___ deg.

Answer 17

76 deg.

Question 18

At taxi speeds from ___ - ___ kts the steering angle will be gradually reduced down to ___ deg.

Answer 18

40-100 kts will reduce the angle down to 7 deg.

Question 19

Towing the aircraft is not allowed when:

Answer 19

The steering motor is pressurized
When operating in active mode
Or if any of the brakes are pressurized

Question 20

STEER FAIL in ____ on EICAS means what?

Answer 20

Amber. Means that the steering system has failed and the nosewheel is going to free caster

Question 21

LG NO DISPATCH in ____ on EICAS means what?

Answer 21

Amber. Means that the nose gear was over steered beyond limits and must be looked at by mx

Question 22

LG LEVER DISAG in ____ on EICAS means what?

Answer 22

Red. Means that at least on landing gear position doesn’t match the switch position and has been that way for at least 20 seconds

Question 23

LG NOSE DOOR OPEN in ____ on EICAS means what?

Answer 23

That either of the two nose gear doors didn’t close fully upon extension or retraction of the gear

Question 24

The “LANDING GEAR” aural message can be heard when:

Answer 24

The gear is not down and the flaps are in a position of 5 or full

For flaps set to 1, 2, 3, or 4… Radio altimeter <700 AGL… Or TLA 45 deg or less (2 engines). Or TLA 59 deg or less (one engine)

Question 25

(T/F) Pushing the LG WRN INHIB will permanently silence the gear alarm until the button is pushed again.

Answer 25

False. This will only silence the current alarm and will be reset when the message would normally go away.