Landing Gear And Brakes Flashcards Preview

SkyWest CRJ Upgrade 2019 > Landing Gear And Brakes > Flashcards

Flashcards in Landing Gear And Brakes Deck (21):
1

What are the brush seals for?

Create an aerodynamic seal

2

What is the overheat protection for the landing gear?

Single loop detection system

3

What keeps the tires from exploding if they get too hot or pressurized?

Fusible plugs that melt causing deflation instead of rapture

4

How is the nose gear door actuated? What is the normal position?

HYD 3 and rear door is mechanically attached
Gear down = door open
Gear up = door closed

5

How is the nose wheel steering accomplished?

HYD 3 pressurized and N/W steering armed

6

How much turning radius for the tiller? For the rudder?

68-70 degrees
5-7 degrees

7

How is the nose gear held up?

HYD 3 press and unlocks

8

How is the main landing gear held up?

Mechanical unlocks

9

What is the down lock release?

Solenoid lock installed to prevent the up selection of gear lever w/ weight on wheels signal

10

How is the nose gear extended?

Rearward moving, downlock assist springs

11

When would you use manual gear extension? How much force is required?

Gear fail or HYD 3 fail
Follow the QRH
40lbs of force

12

When the gear is manually extended how does the nose gear come down? The main?

Nose: free falls, assisted by airflow, and overcenter springs
Main: assisted by auxiliary actuators HYD 2

13

What is the gear warning system based off of?

Thrust lever position
Flaps
Landing gear
Airspeed

14

Can you mute the landing gear aural system?

YES QRH directed

15

How many accumulators are on the main wheels? Where are they?

2
Inboard and outboard

16

What system powers the inboard brakes? The outboard? How many brake applications do you have after a system failure?

IND BRD: HYD 3
OT BRD : HYD 2
6 applications

17

When is the most accurate time to check the brake wear pins?

When HYD 2 & 3 are pressurized and parking brake is set

18

When is the anti-skid activated?

Greater than 35kts until min speed of 10kts

19

Can you take off with a BTMS of 6? 7?

You must check if you are legal
NOPE

20

When does the parking brake warn msg illuminate?

When the parking brake is on, and thrust is greater than 70%

21

Which brakes will maintain pressure for a longer amount of time?

Inboard brakes, HYD 2