Landing Gear and Brakes

Question 1

On the nose landing gear tires, the tire chines are mounted outboard or inboard?

Answer 1

Outboard

Question 2

What protections are available during normal braking

Answer 2

Anti Skid protection
Locked wheel protection
Touch down protection

Question 3

What is anti skid protection

Answer 3

Anti-skid controls the amount of hydraulic pressure applied by the pilots on the brakes.

Question 4

What is locked wheel protection?

Answer 4

Locked wheel protection is activated for wheel speeds above 30kts. If one wheel is 30% lower than that of another a full brake pressure relief is commanded to the associated wheel, allowing wheel speed recovery.

Question 5

What is touch-down protection

Answer 5

Touch down protection inhibits brake actuation before the main wheels spin up during landing. Brake action is only allowed after 3 seconds from the latest touchdown or after the wheels have spun up to 50 kts

Question 6

When using the emergency brakes do you have to the anti-skid, lock brakes, and touchdown protections

Answer 6

NO

Question 7

In essential power mode is nose wheel steering available

Answer 7

No

Question 8

When operating the emergency brakes, hydraulic pressure is applied to which brakes

Answer 8

All main gear brakes

Question 9

The system 2 accumulator has enough stored hydraulic pressure to supply a total of ____emergency actuations or ___hrs of continuous parking brake actuation? How can hydraulic pressure to the parking brake be verified?

Answer 9

6 actuations
24 hrs
BRAKE ON light

Question 10

What does the Free fall actuator do?

Answer 10

It requires no electrical or hydraulic power to to extend the landing gear. Extends the gear by mechanically actuating the free-fall selector valve removing hydraulic pressure and un locking the 3 landing gear uplocks via cable linkage allowing the gear to fall into a down position

Question 11

With a total loss of hydraulic system 1 will the landing gear deploy/operate normaly

Answer 11

NO

Question 12

When in essential power mode would you have normal braking

Answer 12

Yes

Question 13

Nose wheel rotation is stopped by

Answer 13

THE SNUBBER!!!

Question 14

In essential power mode how is the landing gear extended

Answer 14

Normaly

Question 15

If the gear is not down and locked under what conditions would the landing gear aural warning alert pilots

Answer 15

< 1200’
> 1200’ at flaps 45°
RA inop flaps 22° an 45°

Question 16

When is the purpose of the landing gear Electrical Override switch

Answer 16

By pass the LEGU to extend the landing gear