Reported engine systems (FAA SDR)

Engine - Turbine/Turboprop463
Engine Fuel & Control142
Engine Air87
Engine Indicating28
Engine Oil28
Engine Exhaust27
Power Plant13
Ignition8
Engine Controls8
Starting6
Other1

Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).

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