engine removal/installation 1-45 vocab

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