Landing Gear & Brakes

Question 1

Under normal conditions, which system powers the landing gear?

Answer 1

Hydraulic System A

Question 2

Describe how tires are protected from explosion during thermal expansion caused by Hot Brakes

Answer 2

4 thermal fuse plugs in each inner wheel half melt at 177c

Question 3

When is the Landing Gear Lever locked

Answer 3

When on the ground.

Yes can be overridden with the Lever Lock Override Trigger

Question 4

What do the red and green position lights on the forward landing gear panel indicate?

Answer 4

Red: Landing gear is not down and locked with either or both thrust levers at idle and below 800’ AGL

or landing gear is in disagreement with the lever

Green: Landing gear is down and locked

Question 5

What is the purpose of the aft overhead panel Supplemental Landing Gear indicator lights?

Answer 5

Indicated that the related gear is down and locked.

Question 6

what protects the aircraft from loose tread or foreign object debris in the main wheel well during landing gear retraction?

Answer 6

Frangible Fitting

Question 7

If the No.1 engine fails, how is the hydraulic capability of system A affected? How is the gear raised at a normal rate?

Answer 7

Loose EMDP 1.

Landing Gear Transfer Valve which allows system B engine-driven pump to supply the volume of hydraulic fluid needed to retract the gear.

Question 8

When is nose wheel steering active?

Answer 8

Is powered when the nose gear is in the down position and compressed by the weight of the aircraft.

Question 9

If Normal and Alternate Brake pressure is lost, how is braking accomplished? Are there any limitations.

Answer 9

Braking is accomplished through the brake accumulator.

It can provide 6 brake applications.

Question 10

Which Hydraulic systems can pressurize the parking brake?

Answer 10

Either System A or B

Question 11

Which hydraulic system(s) have Anti-skid?

Answer 11

Both the Normal and Alternate Hydraulic Braking systems have anti-skid
Normal: All 4 main wheels are controlled individually
Alternate: Anti-skid is applied to main gear pairs

Question 12

Is the Alternate Braking System capable of supplying Autobrakes?

Answer 12

No

Question 13

When can RTO braking be armed? When is RTO braking available?

Answer 13

Armed: On the ground, thrust levers at idle, wheel speed less than 60 kts

Available: It is available after reaching a wheel speed of 90 kts

Question 14

What does a Parking Brake Warning (red) light indicate?

Answer 14

The parking brake is on

Question 15

The Alternate Brake System is powered by?

Answer 15

Hydraulic System A

Question 16

With RTO selected, if the takeoff is rejected prior to wheel speed reaching 90kts: ______________ and ______________

Answer 16

Autobraking is not initiated the and the RTO autobrake function remains armed

Question 17

How is braking available if both Hydraulic Systems A and B are lost?

Answer 17

Trapped hydraulic pressure in the Brake Accumulator (System B) can still provide several (6) brake applications or parking brake application for 8 hours

Question 18

In the MAX, what are the positions of the Landing Gear Lever/

Answer 18

Up, Down

Question 19

What kind of brake discs does the MAX have?

Answer 19

Carbon