Card Set Information
ame airframe landing gear aircraft maintenance brakes wheels
ame airframe landing gear aircraft maintenance brakes wheels
Tail wheel landing gear arrangement is generally known as?
Retracting the landing on an aircraft reduces the parasite or induced drag?
Almost all modern aircraft use what landing gear arrangement?
Tailwheel aircraft are highly susceptible to an abrupt uncontrolled change in direction on the ground
Fairings used to enclose the wheels are known as?
A bundle of small strands of rubber encased in a loosely woven cloth tube is known as?
A bungee cord
The most widely used shock absorber? and is commonly known as?
oil-air shock absorber commonly called oleo
Oleos absorb landing impact and transfers the energy into?
What is the most critical area of the wheel?
Oleo strut inflation is checked by measuring the length of exposed ?
Modern aircraft wheels are usually one or two peice wheels?
Two peice sealed by o-ring
Aircraft wheels may be cast or forged of either ____ or ____ alloy.
aluminum or magnesium
In cases of extreme overheating what safety is installed on the inboard wheel half?
fusible plugs that melt at a lower temperature
What is procedure is sometimes required on certain wheel installations?
preloading the bearings
What must be done before attempting to remove the wheel?
deflate the tire
What should not be done when drying bearings with compressed air?
No spinning bearings
Water stains on a bearing indicates what?
intergranular corrosion and should be rejected
To ensure all tire pressure is relieved , what should be done?
remove valve core
Aircraft bearings should be cleaned with steam. true or false
False , clean with solvent
Discolored bearings is an indication of?
Dye penetrant inspection is a good method to find cracks in the bead area of the wheel. true or false
False, eddy current should be used
Screwdrivers should not be used to pry on tires. true or false
Wheel bolts should be inspected using what method?
What must be done if one of the fusible plugs shows signs of softening?
Replace all of the fusible plugs
What is used to reduce nose wheel oscillations?
If the tops of the wheels are closer together than the bottoms the wheels is said to be?
If the front of the wheels are closer together than the rear , it is said to be?
Retractible gear aircraft must have a way to (raise or lower) the landing gear in case of failure of primary system.
What are 4 methods of back-up gear extension?
What is installed in the gear retraction system to prevent the gear from being retracted on the ground?
Squat switch ,saftey switch , weight on wheels switch
Down and lock lights are what color?
A gear warning horn will sound when?
any of the gear is down and the throttles are retarded
Metallic brake linings are also known as?
Power brakes are operated using pressure from the?
Main hydraulic system
Boosted brakes apply power from where?
an independant master cylender
When the disc is keyed and rotates with the wheel it is?
floating-disc brake system
Powdered metal that is melded by pressure and heat is known as?
If the brake system uses a fixed disc,what must float?
What are 2 causes of spongy brakes?
Air in the system and
deterioration of the brake lines
When a brake fails to completely release it is said to be?
What causes brake chattering?
warped or glazed discs
After a brake has been rebuilt it must be bench tested for ___ and ___ before being installed on aircraft.
leakage and proper operation
After replacing brake linings, what should be done?
new linings should be burnt in or conditioned
Brake linings should be installed with the lettering ______ from the disc.
What must be done if an incompatible brake fluid is used?
drained, flushed, and all seals replaced
What is sometimes used as an emergency braking system.
Removing air from the brake system is known as ?
Anytime the brakes shows signs of ____ , they must be removed, inspected, and rebuilt.
Stopping a leak by tightening a MS fitting is acceptable?
Not, over-torquing will cause leak to increase
True or False. Cleaveland brake linings can be replaced without removing the calipers.
The most important part of the tire is?
The carcass of the tire is made up of ?
layers of rubber coated - nylon cord fabric cut into strips and layed at 45 degree angles and 90degrees to each other
The bead of the tire is made of?
High strength carbon steel wire bundles
Tubes are prevented from pinching on installation by dusting with?
The ply rating relates to ?
Maximum static load and inflation pressure
Type 8 tires are used for?
high performance jet aircraft and high speed take-offs
Type 3 tires are used on?
piston powered ,low pressure tires
Type 7 tires are used on?
Chines on tires do what?
deflect slush and mud away from engine intakes
Inflation pressure should always be checked when the tire is ?
When tires are inflated they should be done in what?
a tire cage
Wheel bolts should be lubricated with anti-seize. true or false
Wheel bolt should be tightened how?
one smooth pull of the torque wrench
Tube tires should be inflate to seat the bead, deflated then inflated to proper pressure. Why?
allows tube to straighten itself and remove any wrinkles
A line should be painted across the wheel and tire. why?
Where are 3 places to install balance weights?
-Brackets mounted under the heads of wheel bolts
-lead strips that adhere to inside of wheel
-fasten to wheel rim by cotter pin
Tubeless tires are identified by the word _____ on the sidewall.
Tires with chines are usually located ?
on the nose wheel
The greatest heat is caused by a tire that is (over or under) inflated.
The most popular tread pattern today is the?
Retreading is acceptable or unacceptable in aircraft?
The ply rating indicates the actual number of plies in the tire?
The red dot on the tire indicates?
the tires light point
top 2 reasons for a leaking tube?
hole in the tube
If a tube is leaking first check?
valve ., by spreading a drop of valse over the end
Ozone is not harmful to rubber. true or false
Where should tubes be stored?
In a cool, dry place, away from electrical eqiupment that produces ozone
If a bead area of a tire is damaged is it repairable?
What type of seal is used in between wheel halves?
The most important preventitive maintenance is maintaining proper _____.
What does the yellow mark on the tube indicate?
heavy point, if there is no yellow mark , the valve stem is considered the heavy point
Tires should be inflated _____.
slowly and gradually
the loss of contact of tires to pavement on take-off or taxi due to water is known as?
How long should new tires be allowed to remain with no load applied to them when installed?
12 to 24 hours