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What should be the first thing that you as a technician must do before starting the engine removal process
and removal should take place in a well ventilated area with a fire extinguisher nearby
List for safety precautions that must be taken and preparing for engine removal
be in a well ventilated area with a fire extinguisher, chalk, main gear wheels, if it has a tricycle landing gear support the tail to avoid tipping, if it has a gas charge, landing gear shock strut deflate them
In preparation for injury removal what should be done to the fuel shut off valve
To prevent your leaks and spills, it should be closed
what should be done to the magneto? Explain why?
Make sure magnetos switches off and remove one spark plug from each cylinder this prevent compression and eliminates the possibility of engine, kickback or startup when prop is turned
explain how to disconnect the battery why is this method preferred?
First disconnect the negative then the positive this method is preferred to reduce the possibility of electrical sparks
in general, what should be done with control, lever switches and circuit breakers and preparation for engine removal
Assure that they are in the opposition, make sure circuit breakers are pulled and collered for safety
What should be done with the cowling once it’s removed from the aircraft
clean it thoroughly unexpected look for burns cracks, elongated fastener holes, etc.
when should the oil be drained
After magnetos and batteries are disarmed
besides the oil sump what other components need to be drained
Return line, filter, and oil cooler
Who is instructions must be followed when removing the propeller
Follow the manufacturers instructions
What must be done with fluid caring lines during the engine removal process?
Disconnect and drain the remaining fluid lines and reservoirs
What should be done with wires, fluid lines, and fittings that are not easily identified
Label all lines and fittings to minimize confusion when reinstalling them
what method is used to prevent accidental disconnection of electrical plugs and receptacles during flight?
The plug assembly is screwed to receptable and secure with safety wire
how are exposed ends of connectors protected from dirt and moisture
Moisture proof tape
After the engine controls have been disconnected what should be done with notes, bolts, cotter pins and lock tab
cotter pins and lock tabs should have been thrown away, and if the nut and bolt remains airworthy reinstall them
What is the engine control linkage once they have been disconnected?
inspect the hardware for wear
What does QECA include
Quick engine change assembly includes the power plant with accessories already installed, and attached to the engine mount assembly
what is the purpose of an engine sling?
Supports the engines and is attached the hoist and the sling is attached to the engine mount
As a matter of safety, we should be checked before touching the hoist and sling to the engine
inspector sling and hoist before used be sure that the hoist is sufficiently rated to lift the engine safely with the hoist arm extended
which should be checked before you begin to lift the engine
Verify that the aircraft supported and the wheels are chocked
what should you do if the engine binds when separating it from the aircraft
Identify why and maneuver, the engine
where would you find the lifting capacity of the hoist
on the hoist frame
Engine compartment structure
Corrosion, cracks, missing rivets
Engine control
chips, corrosion, cracks, edges
pulley bearing
binding, flat spots, excessive play
cables and rods
broken wire strands, bend cables, chafe cables, misaligned cables
electrical wiring, connectors, terminals
brakes, chafing, deteriorated insulation, check crimped and soldered terminals for security and cleanliness, check connectors for damage, corrosion, overall condition
bonding straps
fraying, corrosion
hydraulic and pneumatic lines
dents, nicks, kinked, or twisted and the attaching clamp should be secure
air ducts
dents and the condition of the rubber anti chafing strips at their joints
anti chafing strips
loose or no longer form a tight seal, broken, ripped
hoses
Weather checking, cold flow
What type of damage is associated with weather checking
A cracking of the outside covering of hoses that can Penetrate their enforcement webbing
what is meant by cold flow on a hose?
A deep permanent impression caused by hose clamps
What should engine mounts be checked for
Benz, dense, flat spots, or a elongated bolt holes, cracks, porous areas, or other defects
What nondestructive method of inspection is used to detect flaws and engine mounts
dye penetrant and magnetic particle inspections
What is done with with engine bolts once they have been removed
Performing magnetic particle inspection
What is the distinctive characteristics of dynafocal engine mounts
The mounting points are turned inward, pointing towards the engine center of gravity
what does this design help accomplish
Limits the transmission of engine vibration to the air frame
how will isolating shock mounts help?
It will damp in engine vibration, but still permit restricted engine movement
NOTES NOT SQ
remember checklist, technical data, special tooling, engine dolly, prepare cockpit for removal, do pre inspection
remove engine controls, fluid lines, sense lines
NOTES NOT SQ
