engine inspection

Question 1

what publication is used as a guide for an 100-hour inspection on an aircraft engine?

Answer 1

CFR14 Part 43 Appendix D and the manufacturer’s maintenance manual

Question 2

what publication is needed to inspect an engine for conformity with specifications

Answer 2

the engine specifications or type certificate data sheet

Question 3

how do you identify the engine serial number

Answer 3

it is on the engine data plate of the engine

Question 4

how can you visually identify an engine

Answer 4

by the data plate

Question 5

prior to returning a reciprocating engine to service after a 100-hour inspection, what operational checks must be completed

Answer 5

Check the power output (static and idle rpm), check the magnetos, fuel and oil pressure, cylinder and oil temperature

Question 6

where are life-limited parts of an engine listed

Answer 6

engine maintenance manuals, engine TCDS, and airworthiness limitations section of the instructions for continued airworthiness

Question 7

what additional inspection is required if a cylinder compression is weak

Answer 7

an internal cylinder inspection

Question 8

where can engine operating limits be found

Answer 8

engine maintenance manual, engine specifications, TCDS, and aircraft manufacturers maintenance manual

Question 9

what criteria are used to determine the replacement of life limited turbine engine components

Answer 9

cycles, hours, or calendar time

Question 10

why are hot section inspections performed on turbine engines

Answer 10

to determine the integrity and wear of the hot section components

Question 11

what inspections must be performed on a turbine engine if the exhaust gas temperature exceeds limitations

Answer 11

a hot section inspection

Question 12

what inspections must be performed following a turbine engine overspeed

Answer 12

refer to the engine manufacturer’s maintenance manual for the required procedures

Question 13

what FAA approvals are required when installing an engine that is not on the aircraft type certificate

Answer 13

An STC ( supplement type certificate ) or an FAA field approval

Question 14

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

Answer 14

1. supplement type certificate
2. a field approval under a minor change in type design.

Question 15

what purpose does an oil analysis serve

Answer 15

It helps evaluate the health of the engine. metal particles in the oil show normal and abnormal wear of the engine.

Question 16

under what conditions is compliance with an engine service bulletin mandatory

Answer 16

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

Question 17

when removing turbojet or turbofan turbine blades, why is it important that they be installed in the same location as removed turbofan

Answer 17

to maintain the balance of the turbine wheel

Question 18

what is fan blade shingling

Answer 18

fan blade shingling is the overlapping of the midspan shrouds of the fan blades

Question 19

what publication is used to check an engine for normal operation

Answer 19

manufacturer’s maintenance manual

Question 20

what inspection should be performed on an engine that has been in storage

Answer 20

perform an inspection to determine if there is any corrosion damage

Question 21

what inspection should a mechanic accomplish during coast-down after shutdown of a turbofan or turbojet engine

Answer 21

Listen for an audible rubbing sound or other unusual noises from the engine

Question 22

what functions need to be accomplished in order to prepare an engine for a 100hr inspection

Answer 22

remove the engine cowling and clean the engine