ATA 85 — Reciprocating Engine

19,883 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
96657	COUPLING	—	—	85	unknown	OEM
96675	BEARING	—	—	85	unknown
9693M18P04	Piston Ring	—	—	85	unknown	OEM
9693M18P04PR	Ring, Piston	Precision Ring, Inc.	—	85	Engine Accessories	PMA
9693M18P07	Piston Ring	—	—	85	unknown	OEM
9696001111	LINE	—	—	85	unknown	OEM
9696001117	TUBE ASSY	—	—	85	Consumables / Hardware	PMA
974353-1	Ring, Piston	Honeywell	A318 A319-100+2	85	Engine Accessories	OEM
97689-31	Piston Ring	Honeywell	—	85	Engine Accessories	OEM
98-10007-( )	Intercooler Assembly	Machen, Inc.	—	85	Engine Accessories	PMA
98-10009-1	Turbo Discharge Casting	Machen, Inc.	—	85	Engine Accessories	PMA
98-10010-1	Turbo Intake Casting	Machen, Inc.	—	85	Engine Accessories	PMA
98-10015-( )	Induction Casting	Machen, Inc.	—	85	Engine Accessories	PMA
98-10020-( )	Intercooler Assembly	Machen, Inc.	—	85	Engine Accessories	PMA
98-40002-( )	Intercooler Assembly	Machen, Inc.	—	85	Engine Accessories	PMA
980201-1	Bearing	Machen, Inc.	—	85	Engine Accessories	PMA
980205-001	Turbocharger Clamp	Machen, Inc.	—	85	Engine Accessories	PMA
980206-1	Compression Spring	Machen, Inc.	—	85	Consumables / Hardware	PMA
980208-003 & -005	Turbo Blankets	Machen, Inc.	—	85	Engine Accessories	PMA
980208-3, -5	Turbo Blankets	Machen, Inc.	—	85	Engine Accessories	PMA
980209-1	Switch	Machen, Inc.	—	85	Electromechanical	PMA
982C9HE2	MAIN BEARING	CURTIS	—	85	Engine Accessories	OEM
98583	Coupling, front intake pipe	Design Engineering	—	85	Engine Accessories	PMA
98873	Cylinder Barrel	Design Engineering	—	85	Engine Accessories	PMA
98874	Barrel Assy, Cylinder	—	—	85	Engine Accessories	OEM
98874	Barrel Assy, Cylinder	—	—	85	Engine Accessories	OEM
99-02199	Superior Millennium Cylinder Complete Assemblies SL32006N-A20P - Open Box - 1268 Grams	—	—	85	Engine Accessories	PMA
99101371	SHAFT	Eaton	777-200 777-300+1	85	unknown	OEM
996583	CRANKSHAFT	—	777-200 777-300	85	unknown
996879R	GEARBOX	—	—	85	Engine Accessories	PMA
996920	BEARING	—	777-200 777-300	85	unknown	OEM
9974M10P207	Ring, Piston	—	—	85	Engine Accessories	OEM
A&L 10078	Spring, Valve Outer	A & L Aircraft Parts Inc	King Air 90	85	Engine Accessories	PMA
A&L 88962	Rocker Box Gasket	A & L Aircraft Parts Inc	—	85	Engine Accessories	PMA
A&L 90560	Rocker Box Gasket	A & L Aircraft Parts Inc	—	85	Engine Accessories	PMA
A049405N	CRANKSHAFT	—	—	85	unknown	OEM
A16923	RISER	—	R22	85	unknown	OEM
A20TK99	VALVE GUIDE	—	—	85	unknown	OEM
A22EK99	VALVE GUIDE	—	—	85	unknown	OEM
A23001938	Nozzle Assembly, Turbine 2nd Stage	Superior Air Parts Inc	—	85	Engine Accessories	PMA
A23004212	Shim, Tabbed	Superior Air Parts Inc	—	85	Consumables / Hardware	PMA
A23004538	Nut, Hex-nylon cap .3750-24 (350 F)	Superior Air Parts Inc	—	85	Consumables / Hardware	PMA
A23008017	Washer, Bearing, Ret.	Superior Air Parts Inc	—	85	Consumables / Hardware	PMA
A23008018	Shaft, Support, Idler Gear	Superior Air Parts Inc	—	85	Engine Accessories	PMA
A23030981	Nut, Coupling, Power, Turbine Inner (LH)	Superior Air Parts Inc	—	85	Engine Accessories	PMA
A23031921	Replacement Nomenclature and Part No. Gearshaft, Spur Adapter	Superior Air Parts Inc	—	85	Engine Accessories	PMA
A23031922	Gearshaft Assembly	Superior Air Parts Inc	—	85	Engine Accessories	PMA
A23032283[]	Cage, Pinion Bearing	Superior Air Parts Inc	—	85	Engine Accessories	PMA
A23039791	Coupling, Adapter, Compressor	Superior Air Parts Inc	—	85	Engine Accessories	PMA
A23053263	Gasket, Bleed control	Superior Air Parts Inc	—	85	Engine Accessories	PMA