Chapter 14 – Landing Gear

Question 1

1. How many tires do we have and what is their numerical order?

Answer 1

a. 18 (AOM 14-11)

Question 2

2. Selecting value 3 on the Auto Brake selector does what? From which source does the auto
   brake system receive deceleration inputs?

Answer 2

a. Maintains the selected airplane deceleration rate
b. Captains IRU (Autobrake pressure is reduced as other controls, such as thrust reversers and spoilers, contribute to total deceleration. The system provides braking to a complete stop or until it is disarmed.) (AOM 14-14)

Question 3

3. What does the EICAS message GEAR TILT mean?

Answer 3

a. Main Gear Trucks not in Full Tilt Position (AOM 14-19)

Question 4

4. How do we alternately extend the gear? Where are the switches located?

Answer 4

a. Selection of Alternate Nose/Body and Wing Gear. Switches located on the Landing Gear Panel (AOM 14-1)

Question 5

5. You have a wheel well fire, what speed should you be at before extending the gear?

Answer 5

a. 270kts/M0.82 (QRH 8-8)

Question 6

6. On takeoff roll, when does RTO arm? What kind of braking is provided?

Answer 6

a. 85kts b. Max Braking (AOM 14-14)

Question 7

7. What does a white hashed box displayed on the (expanded) gear position indicator indicate?

Answer 7

a. related landing gear in transit (AOM 14-7)

Question 8

8. How long does the gear up indication remain in the EICAS?

Answer 8

a. 10 Sec (AOM 14-11)

Question 9

9. At what speed does the body gear steering disarm?

Answer 9

a. >20kts (AOM 14-12)

Question 10

10. What does the brake torque limiting system do?

Answer 10

a. The sensors detect excessive torque during braking to prevent damage to landing gear. When excessive torque is detected, a signal is sent to the antiskid valve to release brake pressure to that wheel (AOM 14-13)