Engine inspection Flashcards
What functions need to be accomplished in order to prepare an engine for a 100 hour inspection?
Remove the cowling and clean
What publication is needed to inspect an engine for conformity with specifications?
Type certificate data sheet (TCDS) or engine specifications
What publications can be used as a checklist guide for 100 hour inspections on aircraft engines?
FAR part 43 appendix D
How do you identify an engine serial number?
Look on the engine data plate
Prior to returning a reciprocating engine to service after a 100 hour inspection what operational checks must be performed?
Power output
Magnetos
Fuel/oil pressure
Oil temperature
Where are life limited parts for an engine listed?
Engine maintenance manual
Type certificate data sheet
Airworthiness limitations
Instructions for continued airworthiness
Where can engine operating limits be found?
Engine manual
Type certificate data sheet
Engine specification
Aircraft maintenance manual
Why are hot section inspections performed on turbine engines?
To determine the integrity and aware of hot section components
What inspections must be performed following a turbine engine over speed?
Whatever is required by engine maintenance manual
What inspections must be performed on a turbine engine if the EGT exceeds its operational limits
A hot section inspection
What FAA approvals are required when installing an engine that is NOT on the aircraft type certificate?
A supplemental type certificate (STC) or an FAA field approval
Under what conditions is compliance with an engine service bulletin mandatory?
When an AD references the service bulletin
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 the time of overhaul
If turbine blades are removed from a turbine disc, why should they be reinstalled in the same location?
To maintain balance of the turbine wheel
When a turbofan or turbojet engine is shut down what should a mechanic listen for during coast down?
Any rubbing sound or other unusual noises from the engine
What criteria determines replacement of life limited turbine engine components?
Cycles, hours and/or calendar time
What is fan blade shingling?
A type of turbine engine blade damage caused by sudden stoppage of the fan or by an overspeed condition. Midspan shrouds on the fan blades overlap rather than meet with face-to-face contact.
What inspection should be performed on an engine that has been in storage after have been preserved?
Corrosion damage
What purpose does an oil analysis serve?
Metal particles in the oil can show normal and abnormal wear of the engine. This helps in evaluating the engines internal condition.
A weak cylinder is found during a compression check. What must be inspected?
An internal cylinder inspection
