ATA 85 — Reciprocating Engine

20,859 parts classified under this chapter

Reliability rollup

91%Median scrap propensity

2,637 parts · 5,796 SDR reports

From FAA Service Difficulty Reports

Part Number	Description	Manufacturer	Airframe	ATA	Category	Status
69679	BOLT	—	PA-31 Navajo	85	Consumables / Hardware	PMA
69693	Guide, Valve, Exhaust	—	—	85	Engine Accessories	OEM
69693	Guide, Valve, Exhaust	—	—	85	Engine Accessories	OEM
69796	DOWEL PIN	—	C172 Skyhawk	85	Consumables / Hardware	OEM
6V350	ENGINE	—	—	85	unknown	OEM
7-1699-2	—	—	—	85	Engine Accessories
700103	Gasket	—	—	85	Consumables / Hardware	OEM
700103	Gasket	—	—	85	Consumables / Hardware	OEM
70256	Bushing, Counterweight	—	—	85	Engine Accessories	OEM
70256	Bushing, Counterweight	—	—	85	Engine Accessories	OEM
70275	CYLINDER HEAD	—	C172 Skyhawk	85	unknown	OEM
70310	SEAL	—	737-700 737-800+3	85	Consumables / Hardware	OEM
70328501	CAMSHAFT	—	C150	85	unknown
70384	GEAR SHAFT	LYC	PA-23 Apache	85	Engine Accessories	OEM
70456	MOUNT	LYC	PA-31 Navajo	85	Structures	OEM
70472	TUBE	—	—	85	unknown	PMA
70484	SCREEN	—	C172 Skyhawk	85	unknown	OEM
7058400	90044 serie silicon lens gasket	other	—	85	Engine Accessories	OEM
70837	Spring	—	—	85	Consumables / Hardware	OEM
7106403	CRANKCASE	—	PA-31 Navajo	85	Engine Accessories	OEM
71099	Cylinder Assembly	—	—	85	Engine Accessories	OEM
71099	Cylinder Assembly	—	—	85	Engine Accessories	OEM
71105	TAPPET	LYC	—	85	Engine Accessories	OEM
71105ASR177	TAPPET	—	C152	85	Engine Accessories
71105ASR218	LIFTER	—	PA-38 Tomahawk	85	Engine Accessories	OEM
71105R	TAPPET	ECI	—	85	Engine Accessories	PMA
71119	Barrel, Narrow-Deck	—	—	85	Engine Accessories	OEM
71133	NUT	—	PA-23 Apache	85	Consumables / Hardware	OEM
71166	EXHAUST VALVE	PWA	—	85	Engine Accessories	OEM
71167	EXHAUST VALVE	—	—	85	Engine Accessories	OEM
71266	INTAKE ROCKER	LYC	—	85	Engine Accessories	OEM
712ACA	CYLINDER HEAD	—	—	85	unknown	OEM
712BCA	CYLINDER	ECI	C402	85	unknown
712BCA221	CYLINDER HEAD	—	C414	85	unknown	OEM
712R	CYLINDER	—	C182 Skylane	85	unknown	OEM
71302	COVER	—	—	85	unknown	OEM
71328	RING GEAR	—	PA-24 Comanche	85	Engine Accessories
71407	Insert, Valve Seat, Exhaust	—	—	85	Engine Accessories	OEM
71407	Insert, Valve Seat, Exhaust	—	—	85	Engine Accessories	OEM
71408	Insert, Valve Seat, Intake	—	—	85	Engine Accessories	OEM
71408	Insert, Valve Seat, Intake	—	—	85	Engine Accessories	OEM
714U	CYLINDER HEAD	ECI	C206 Stationair	85	Engine Accessories	PMA
715	Packing - Thrust Bearing Cup	—	—	85	Engine Accessories	OEM
715	Packing - Thrust Bearing Cup	—	—	85	Engine Accessories	OEM
71533	Piston, 7.30 1 Comp. Ratio	—	—	85	Engine Accessories	OEM
71533	Piston, 7.30 1 Comp. Ratio	—	—	85	Engine Accessories	OEM
71545	Piston, 7.30 1 Comp. Ratio	—	—	85	Engine Accessories	OEM
71545	Piston, 7.30 1 Comp. Ratio	—	—	85	Engine Accessories	OEM
71549	Washer, Rocker Thrust	—	—	85	Engine Accessories	OEM
71549	Washer, Rocker Thrust	—	—	85	Engine Accessories	OEM