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
639567 & 639568	Piston Ring, Oil Control	—	—	85	Engine Accessories	OEM
639567 P15 & 639568 P15	Piston Ring, Oil Control	—	—	85	Engine Accessories	OEM
639567 P5 & 639568 P5	Piston Ring, Oil Control	—	—	85	Engine Accessories	OEM
639567A13	ring set	teledyne continental	—	85	Consumables / Hardware	OEM
639568	Ring, Compression	—	—	85	Engine Accessories	OEM
639568	Ring, Compression	—	—	85	Engine Accessories	OEM
639570P005	Ring-Piston	—	—	85	Engine Accessories	OEM
639570P015	Ring-Piston	—	—	85	Engine Accessories	OEM
639573 STD	Washer, Rocker Thrust	—	—	85	Engine Accessories	OEM
639573 STD	Washer, Rocker Thrust	—	—	85	Engine Accessories	OEM
639573P010	Washer, Rocker Thrust	—	—	85	Engine Accessories	OEM
639573P030	Washer, Rocker Thrust	—	—	85	Engine Accessories	OEM
639579P005	Ring-Piston	—	—	85	Engine Accessories	OEM
639579P015	Ring-Piston	—	—	85	Engine Accessories	OEM
639580P0015	Bushing, Damper, Crankshaft Counter Weight	—	—	85	Engine Accessories	OEM
639580P003	Bushing, Damper, Crankshaft Counter Weight	—	—	85	Engine Accessories	OEM
639580P005	Bushing, Damper, Crankshaft Counter Weight	—	—	85	Engine Accessories	OEM
639614	ROCKER ARM	—	—	85	Engine Accessories	PMA
639614639615	ROCKER	CONT	C172 Skyhawk	85	Engine Accessories	OEM
639615	ROCKER ARM	—	C172 Skyhawk C150	85	Engine Accessories
639640	TCM Rod Bearing 639640	—	—	85	Engine Accessories	OEM
639649	ROCKER	—	—	85	unknown	OEM
63966011	INTAKE HOSE	—	C320	85	Engine Accessories	PMA
639661	VALVE	—	—	85	unknown
639663	Ring, Oil control center	—	—	85	Engine Accessories	OEM
639702	CYLINDER	—	C150	85	Hydraulics	OEM
639709	elbow	teledyne continental	—	85	Consumables / Hardware	OEM
639758P005	Ring, Assembly	—	—	85	Engine Accessories	OEM
639758P010	Ring, Assembly	—	—	85	Engine Accessories	OEM
639758P015	Ring, Assembly	—	—	85	Engine Accessories	OEM
639768	Ring	—	—	85	Consumables / Hardware	OEM
639768	Ring	—	—	85	Consumables / Hardware	OEM
639768 P05	Ring	—	—	85	Consumables / Hardware	OEM
639768 P15	Ring	—	—	85	Consumables / Hardware	OEM
639768P015	ring-discontinued 1-500	teledyne continental	—	85	Engine Accessories	OEM
6399576	EXHAUST ROCKER	CONT	C421 Golden Eagle	85	Engine Accessories	OEM
64-10009-( )	Right Front Baffle Assembly	Machen, Inc.	—	85	Structures	PMA
64-10010-( )	Rear Baffle Assembly	Machen, Inc.	—	85	Structures	PMA
640230	Ring, Compression	—	—	85	Engine Accessories	OEM
640230	Ring, Compression	—	—	85	Engine Accessories	OEM
640230 640231 636929 639563 648006CP 654719CP 636928 639562 648005CP	Ring, Compression	—	—	85	Engine Accessories	OEM
640230 640231 636929 639563 648006CP 654719CP 636928 639562 648005CP	Ring, Compression	—	—	85	Engine Accessories	OEM
640231	Ring, Compression	—	—	85	Engine Accessories	OEM
640231	Ring, Compression	—	—	85	Engine Accessories	OEM
640288	Ring, Scraper	—	—	85	Engine Accessories	OEM
640289	Ring, Compression	—	—	85	Engine Accessories	OEM
640289	Ring, Compression	—	—	85	Engine Accessories	OEM
640290	Ring, Compression	—	—	85	Engine Accessories	OEM
640290	Ring, Compression	—	—	85	Engine Accessories	OEM
640293	Ring, Scraper	—	—	85	Engine Accessories	OEM