Aviation Maintenance: Engine Inspection and Operation Review

Practice fill-in-the-blank flashcards covering engine inspection procedures, balance checks, instrument units, shutdown protocols, and regulatory requirements.

When a crankshaft is placed on two legs or supporting blocks, it is being checked for __________ balance.

static

Decreased valve clearance or disappearing clearance is an indication of wear such as a burnt valve seat or a __________.

receding valve

checking crank

dial indicator

The tachometer indicates engine speed in units of __________.

RPM (Revolutions Per Minute)

Depending on the system type, aircraft fuel flow is measured in gallons per hour (gph) or __________.

pounds per hour

When shutting down a reciprocating engine, the mixture control should be placed in the __________ position to starve the engine of fuel and prevent afterfiring/detonation.

Idle cut-off (full lean position)

Dimensional inspection of a connecting rod bearing is accomplished by installing __________ in both ends and supporting them on parallel bars.

push-fit arbors

During a connecting rod inspection, arbors resting on parallel bars (carol bars / steel bars) are set up on a __________ to take precision measurements.

surface plate

A cylinder barrel is measured for out-of-roundness and taper using a __________ (or telescopic gauges and outside micrometers).

cylinder dial bore gauge

To detect taper and out-of-round wear, cylinder barrel measurements are taken at multiple points along the length and across axes typically parallel and perpendicular to the __________.

crankshaft centerline

A 100-hour inspection can be performed by an appropriately rated __________.

A&P mechanic

Conducting an annual inspection requires an A&P mechanic holding an __________.

Inspection Authorization (IA)

The minimum checklist for a 100-hour inspection on an engine is contained in Federal Aviation Regulations under __________.

14 CFR Part 43, Appendix D