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engine removal
involves a series of critical task that should be accomplished in an orderly manner to prevent personal injury or aircraft damage
reasons for removal
reach the manufacturers published TBO or performance has degraded, sudden stoppage events, metal in oil or maintenance task and repairs
engine life span
environmental operational and design factors affect engine light frequently such preventative maintenance helps and total service life of the engine
TBO
The manufacturers recommended amount of time that the engine can operate under average conditions before it should be overhaul
powerplant logbook
When a manufacturer delivers a new engine, a permanent record of the engines operating time is establishing a power plant logbook anytime the maintenance is perform. A logbook entry should be made, saying the total time uninterrupted after overhaul and since major overhaul.
total time
The elapsed time that a component, engine, or propeller has been in service since it was new
since major overhaul (smoh)
The time and service of a component, engine, or propeller, since it was removed for disassembly and inspection, according to manufacturer standards
attrition factors
Signs of severe performance deterioration due to component where which can lead to engine removal
sudden stoppage
A condition in which the aircraft engine has to come to a complete stop in less than one revolution usually caused by a prop, hitting an immovable object
sudden speed reduction
A condition in which engine speed abruptly drops usually due to the propeller, striking effect object but then quickly returns
crankshaft runout
shaft misalignment
metal particles in the oil
indicates failure of internal engine component, residual metals could be in oil sludge. if carbon strike with hammer disintegrates and check with magnet
spectrometric oil analysis program (soap)
A system of oil analysis in which oil sample is burned, and then wavelengths of the resulting light are examined, determine metals in oils and warns engine failures
unstable engine operation
A period of time and engine might be removed for thorough inspection. Excessive engine vibration, back/firing, cutting out of potential series condition remove as necessary if troubleshooting fails.
computerized engine condition monitoring
Track the performance of their engine against the baseline, such as that of new or newly overhaul engine helps predict engine, failure, and identify necessary, preventative maintenance
tricycle type landing gear
Support to prevent the aircraft from tipping back when you were moving an engine, one wheel in the front two wheels in the back
conventional landing gear
Two big wheels in the front and one wheel in the back
tail stand
post Used to support the tail and prevent tipping
fuel selector/shutoff valve
to help prevent leaks and spills, make sure all fuel shutoff valves are closed.
drip pan
To collect engine oil or any spills that happens under the engine, drain them by removing the drain plug/opening the drain valve
propeller sling
to remove a larger conscious piece propeller use a hoist with propeller sling
quick disconnect fitting
internal check valve that prevents fluid loss when the line is disconnected
cannon plug or amphibious connector
part of AN and MS Connector helps prevent accidental disconnection screwed the receptacle and secured with safety wire open connection by cutting safety wire and unscrewed
junction box
Stores are single or a group of individual leaves connected to a post on a terminal stripped
knife type or wrist lock connectors
electrical connections. These connectors are normally sealed with a protective sheathing
protective sheathing
Used to protect the wire bundle from mechanical damage and moisture
wire labeling
Label all wires and harnesses to eliminate confusion when making connections after its installed
moisture proof tape
Protect exposed ends of connectors when disconnected
engine control linkage
an assembly of cables or rod, which allows you to control the engine from the cockpit
bellcrank
actuates a control rod you might need to remove the bellcrank to access the control rod
turnbuckle
Join the bell crank to the actuating cable before removing a turnbuckle mark the depth of engagement of the cable end this helps you approximately original position of control before final rigging
air intake component
Assembly parts used to bring and feed air into the engine
exhaust system components
Assembly parties to discharge combustion actions from the engine
quick engine change assembly (qeca)
and assembly made up of engine, prop, all accessories, and all necessary cowling and engine mount minimize downtime during an engine change
engine hoist
I too used to remove or install the engine without damage to the airframe
sling
a chain or cable uses support the engine weight
hoist arm
an extendable part of the hoist used to reach the engine
engine stand
Engine stand that an engine is placed on after or before installation or removal that allows room for repair or expansion
engine compartment checking
Inspection of area where engine is mounted on the aircraft
cold flow
The distortion, deformation, or dimensional change, which takes place in materials under continuous slows at temperatures within the working range
engine mounts
constructed from formed and riveted sheet metal, forged all fillings, wielded steel tubing or all three large horizontally oppose engines attached with forge alloy fitting mount to rivet aluminum structure steel tube engine mount used with large/small oppose/radio engine bolt to engine firewall
shock mounts
A shock absorbing attachment, used to melt an engine to an air frame to minimize vibration
dynafocal mounts
amount that attaches to aircraft engine to an air frame in which a projected, extended centerline of all mounting bolt would intersect at a power plant center of gravity
cushion or springback (engine control)
The stop at an engine component that should be contacted before the stop at the cockpit control lever extra travel of control lever provides assurance that the engine component has achieved full position
