Landing Gear

Question 1

What HYD system provides pressure for normal landing gear extension/retraction?

Answer 1

HYD System 3

Question 2

What does the main auxiliary actuator do?

Answer 2

Used for alternate gear extension with HYD System 2 pressure

Question 3

How is the nose gear operated?

Answer 3

Mechanically, no electrical power needed.

Question 4

How is the landing gear held in the up and locked position?

Answer 4

Uplock assembly (mechanical)

Question 5

How is the landing gear held in the down and locked position?

Answer 5

Downlocking mechanism (Mechanically)

Question 6

If you were to lose hydraulic system 3, how would you lower the gear?

Answer 6

You would have to pull the manual release lever

Question 7

What will you not be able to do following failure of hydraulic systems 2 and 3.

Answer 7

Lower the nose gear, it requires hydraulic pressure.

Question 8

Will the main landing gear be fully enclosed following retraction?

Answer 8

No

Question 9

What is the purpose of the MLG brush seals?

Answer 9

They create an aerodynamic seal to reduce drag.

Question 10

What is the ASCU?

Answer 10

Anti skid control unit; actuates brake pressure individually to each wheel based off wheel speed.

Question 11

When is the anti skid active on the ground?

Answer 11

35 kts wheel speed, WOW + 5 seconds. Disengages at 10 kts wheel speed.

Question 12

What are the green, white and red ranges of the BTMS indicators?

Answer 12

Green 00-06
White 07-14
Red 15-20

Anytime they are in the red BRAKE OVHT appears and they must be inspected by maintenance.

Question 13

You walk into the airplane and the BTMS units read 1 but are red, what is going on?

Answer 13

Brakes were previously overheated and not inspected/cleared.