Landing gear system Flashcards
References to auxiliary landing gear refer to what gear on an particular aircraft?
It refers to the nose gear, tail gear, or outrigger-type.
What are two sources of power used to extend and retract landing gear?
They are electrical and hydraulic.
When should landing gear retraction checks be accomplished?
During annual and other type inspections, after replacing landing gear components, and after any hard landing.
What is used to inflate an oleo type landing gear shock strut?
high-pressure source of dry air or nitrogen.
Where would you look to find proper tire inflation information?
in the Operation Manual and the Aircraft Maintenance Manual
What is the purpose of a hydraulic shimmy damper?
to prevent nose wheel vibrations or “shimmy” during taxiing, landing, or takeoff.
What type of care should be given to landing gear shock struts?
They should be inspected regularly for leakage of fluid and for proper extension. The exposed portion of the strut piston should be wiped clean daily and inspected for scoring or corrosion.
What is the effect of under inflated tires?
causes rapid, uneven wear at or near the edges of the tread. Creep or slip when landing or brakes are applied.
What is the purpose of the rubber O-ring mounted on the mating surface of the outer wheel half of a split type wheel?
To prevent air leakage
What are three types of aircraft brake systems?
The independent, the power boosted, and the power control type.
What is the purpose of a shuttle valve in a power control system?
Each brake actuating line in a power brake system incorporates a shuttle valve for the purpose of isolating the emergency brake system from the normal brake system. When emergency brake actuating pressure enters the shuttle valve, the shuttle is systematically moved to the opposite end of the valve. This closes off the normal hydraulic brake system actuating line and allows the emergency fluid to actuate the brakes.
What is the purpose of the main landing gear Torque link?
Keep the landing gear in alignment.
What is used to prevent a nose gear from being retracted with the wheel out of the center position?
internal centering cam or an external track
What is used in a split wheel assembly to keep the air from leaking out between the wheel halves?
An O-ring.
What is the purpose of the fusible plug in some aircraft wheels?
It is designed to melt at a specific temperature and relieve air pressure to prevent the tire from blowing out or damaging the wheel.
How should aircraft tires be stored?
They should be stored in a cool, dry place, away from chemicals, oil, or sunlight.
What is the most important maintenance consideration for aircraft tires?
Ensuring they are properly inflated.
What safety procedure should be followed when inflating tires in general?
They should be inflated inside of a cage whenever possible.
What is the purpose of the anti-skid system?
To bring the airplane to a stop without skidding by providing the most effective braking power under all types
of runway conditions.
What task should be accomplished if the aircraft brakes are spongy?
The brakes need to be bled.
What are two methods of bleeding brakes?
The gravity method and the pressure method.
When inspecting brakes, what do you look for?
a. Check for leaks while the system is pressurized.
b. Check flex hoses for swelling, cracking, or soft spots.
c. Check brake pedals for spongy actuation. (This is an indication of air in the system.)
d. Check brake pedals for excessive travel. (This indicates worn linings.)
What must you do before disassembling an oleo strut?
Discharge the pressure.
Where can you find instructions for jacking one wheel of an aircraft to change a tire?
The aircraft maintenance manual.
What system monitors the antiskid system for failures?
Antiskid controller
