IA Engine & Powerplant Inspection Procedures

Question 1

During an annual inspection of a reciprocating engine, which component is checked for correct torque, safety, and security?

Accepted Answer

Engine mount bolts, exhaust system, and all accessory attachment hardware

Answer

Only spark plugs

Answer

Propeller governor only

Answer

Throttle body and fuel injector nozzles only

Question 2

What does a differential compression test on a reciprocating engine measure?

Accepted Answer

Combustion chamber integrity by comparing cylinder pressure to regulated input pressure

Answer

Fuel mixture ratio at full power

Answer

Magneto timing relative to top dead center

Answer

Oil pressure at cruise RPM

Question 3

When inspecting an exhaust system during an annual, what is the primary concern?

Accepted Answer

Cracks, loose clamps, or gaps that could allow CO to enter the cabin

Answer

Carbon buildup reducing exhaust flow efficiency

Answer

EGT probe calibration accuracy

Answer

Exhaust stack paint condition

Question 4

What does an IA check regarding propeller tracking during an annual inspection?

Accepted Answer

That each blade tip passes through the same plane of rotation within manufacturer limits

Answer

That all blades track within 1/16 inch of each other

Answer

That the propeller governor maintains RPM within 50 RPM of redline

Answer

That propeller pitch is set to the manufacturer's cruise setting

Question 5

An IA discovers metal particles in the engine oil filter during an annual inspection. What is the correct action?

Accepted Answer

Document the finding and determine whether the source requires further investigation before approving return to service

Answer

Change the oil and filter, then return to service

Answer

Clean the filter and run the engine for 30 minutes to flush the system

Answer

Add oil treatment additive and monitor during next 25-hour inspection

Question 6

Which FAA document provides the minimum inspection requirements for aircraft engines during an annual inspection?

Accepted Answer

14 CFR Part 43, Appendix A

Answer

AC 43.13-1B, Chapter 8

Answer

14 CFR Part 91, Appendix D

Answer

14 CFR Part 91, Appendix E