Landing Gear System

Question 1

What is the maximum nose wheel steering angle with the tiller?
With the rudder pedals?
When will the body gear steering move?
(AOM Vol II, Ch 14)

Answer 1

• 70 degrees.
• 7 degrees.
• 20 degrees of tiller angle.

Question 2

With the autobrake selector set for landing, what will cause them to disarm?
(AOM Vol II, Ch 14)

7 items

Answer 2

• Move the any thrust lever forward after landing.
• Move the speedbrake lever down.
• Apply manual braking.
• Select DISARM or OFF.
• An autobrake system fault.
• Normal antiskid system fault 41 .
• Loss of normal brake system pressure

Question 3

What is the maximum speed for landing gear extension? Operation?
(AOM Vol I, Ch L)

Answer 3

• 270 knots / Mach .82

* 320 knots / Mach .82

Question 4

At what speed does the body gear steering disarm? Re arm on landing?
(AOM Vol II, Ch 14)

Answer 4

• The body gear steering disarms at 20 knots accelerating.
• The body gear steering arms at 15 knots decelerating.

Question 5

What does the EICAS message “GEAR TILT” mean?

AOM Vol II, Ch 14) (QRH, Ch 14

Answer 5

• At least one main landing gear is not tilted.

* Do not retract the landing gear.

Question 6

The BRAKE SOURCE light is illuminated. What does this mean? (AOM Vol II, Ch 14)

Answer 6

• There is low hydraulic pressure present in the brake system. E.G., Systems 4, 1 and 2 all have low pressure.

Question 7

The autobrakes are set to RTO. You initiate a rejected takeoff at 100 knots. What happens?
(AOM Vol II, Ch 14)

Answer 7

• The autobrake system will apply 3,000 PSI to the main wheel brakes until the aircraft reaches a full stop.

Question 8

What does a white hashed box displayed on the expanded gear position indicator indicate?
(AOM Vol II, Ch 14)

Answer 8

• The associated landing gear is in transit.

Question 9

In what order must the landing gear be extended using the alternate system?
(AOM Vol II, Ch 14) (QRH, Ch 14)

Answer 9

• No specific order is required. Press both alternate gear extension switches simultaneously.

Question 10

The autobrakes are set to 2. What would be the effect of idle reverse thrust versus normal reverse thrust (70%) use on landing?
(AOM Vol II, Ch 14)

Answer 10

• The selection of 2 with the autobrake selector selects a specific deceleration rate. Autobrake pressure is reduced with the use of reverse thrust.