Aircraft Landing Gear Systems

Question 1

1. What are two sources of power used to extend & retract landing gear?

Answer 1

Electrical & Hydraulic

Question 2

2. When should landing gear retraction checks be accomplished?

Answer 2

Annual
replacing landing gear component
after hard landing

Question 3

3. What is used to inflate an oleo type landing gear shock strut?

Answer 3

High pressure dry air or Nitrogen

Question 4

4. Where would you look to find proper tire inflation information?

Answer 4

Operation or Maintenance Manuals

Question 5

5. What is the purpose off a hydraulic shimmy damper?

Answer 5

Prevents nose wheel vibrations during taxi, landing, or takeoff

Question 6

6. What type of care should be given to landing gear shock struts?

Answer 6

Inspected regularly for leaks & proper extension
Wipe piston strut clean daily and inspect for scoring or corrosion

Question 7

7. What is the effect of under inflated tires?

Answer 7

Rapid uneven wear near edges, tire can slip or creep on landing

Question 8

8. What is the purpose of the rubber O-ring mounted on the mating surface of the outer wheel half of a split type wheel?

Answer 8

Prevents air leaks from tubeless tires

Question 9

9. What are three types of aircraft brakes systems?

Answer 9

Independent
Power boosted
Power control

Question 10

10. What is the purpose of a shuttle valve in a power control system?

Answer 10

Isolates the emergency brake system from normal brakes

Question 11

11. What is the purpose of the main landing gear torque link?

Answer 11

Keeps landing gear alignment

Question 12

12. What is used to prevent a nose gear from being retracted with the wheel out of the center position?

Answer 12

Centering device like internal centering cam or an external track

Question 13

13. What is used in a split wheel assembly to keep the air rom leaking out between the wheel halves?

Answer 13

O-ring

Question 14

14. What is the purpose of the fusible plug in some aircraft wheels?

Answer 14

Melts at specific temperatures to relief air pressure

Question 15

15. How should aircraft tires be stored?

Answer 15

In a cool, dry place, away from chemicals, oil, or sunlight

Question 16

16. What is the most important maintenance consideration for aircraft tires?

Answer 16

Properly inflated

Question 17

17. What safety procedure should be followed when inflating tires in general?

Answer 17

Inflate inside a cage

Question 18

18. What is the purpose of the anti-skid system?

Answer 18

Stop aircraft without skidding, most effective braking in all runway conditions

Question 19

19. What task should be accomplished if the aircraft brakes are spongy?

Answer 19

Bleed brakes

Question 20

20. What are two methods of bleeding brakes?

Answer 20

Gravity & pressure

Question 21

21. When inspecting brakes, what do you look for?

Answer 21

Leaks when pressurized
Flex hoses for swelling, cracking, or soft spots
Brake pedals for spongy actuation
Brake pedals for excessive travel

Question 22

22. What must you do before disassembling an ole strut?

Answer 22

Discharge pressure

Question 23

23. Where can you find instructions for jacking one wheel of an aircraft to change a tire?

Answer 23

Aircraft maintenance manual