engine inspection Flashcards
what publication is used as a guide for an 100-hour inspection on an aircraft engine?
CFR14 Part 43 Appendix D and the manufacturer’s maintenance manual
what publication is needed to inspect an engine for conformity with specifications
the engine specifications or type certificate data sheet
how do you identify the engine serial number
it is on the engine data plate of the engine
how can you visually identify an engine
by the data plate
prior to returning a reciprocating engine to service after a 100-hour inspection, what operational checks must be completed
Check the power output (static and idle rpm), check the magnetos, fuel and oil pressure, cylinder and oil temperature
where are life-limited parts of an engine listed
engine maintenance manuals, engine TCDS, and airworthiness limitations section of the instructions for continued airworthiness
what additional inspection is required if a cylinder compression is weak
an internal cylinder inspection
where can engine operating limits be found
engine maintenance manual, engine specifications, TCDS, and aircraft manufacturers maintenance manual
what criteria are used to determine the replacement of life limited turbine engine components
cycles, hours, or calendar time
why are hot section inspections performed on turbine engines
to determine the integrity and wear of the hot section components
what inspections must be performed on a turbine engine if the exhaust gas temperature exceeds limitations
a hot section inspection
what inspections must be performed following a turbine engine overspeed
refer to the engine manufacturer’s maintenance manual for the required procedures
what FAA approvals are required when installing an engine that is not on the aircraft type certificate
An STC ( supplement type certificate ) or an FAA field approval
name at least one type of FAA approval required when a change to an engine type design is not enough to require a new type certificate
- supplement type certificate
- a field approval under a minor change in type design.
what purpose does an oil analysis serve
It helps evaluate the health of the engine. metal particles in the oil show normal and abnormal wear of the engine.
under what conditions is compliance with an engine service bulletin mandatory
when an airworthiness directive references the service bulletin or when compliance is part of the approved operating specifications for a commercial or air carrier operator. when engine or component overhaul procedures require compliance at time of overhaul
when removing turbojet or turbofan turbine blades, why is it important that they be installed in the same location as removed turbofan
to maintain the balance of the turbine wheel
what is fan blade shingling
fan blade shingling is the overlapping of the midspan shrouds of the fan blades
what publication is used to check an engine for normal operation
manufacturer’s maintenance manual
what inspection should be performed on an engine that has been in storage
perform an inspection to determine if there is any corrosion damage
what inspection should a mechanic accomplish during coast-down after shutdown of a turbofan or turbojet engine
Listen for an audible rubbing sound or other unusual noises from the engine
what functions need to be accomplished in order to prepare an engine for a 100hr inspection
remove the engine cowling and clean the engine
