ATA 72 — Engine - Turbine / Turboprop

37,874 parts classified under this chapter

Reliability rollup

100%Median scrap propensity

5,464 parts · 14,008 SDR reports

From FAA Service Difficulty Reports

Life-limited parts — how engine material is really valued

Engine rotating structure — fan, compressor and turbine disks, spools, hubs and shafts— is life-limited: each part number carries a hard cycle limit published in the engine's Airworthiness Limitations Section. Unlike blades, vanes and seals, which are on-condition and repairable, an LLP is retired at its limit regardless of condition.

That makes cycles remaining, not condition, the value of a used LLP — and makes complete back-to-birth trace records the difference between a saleable disk and scrap. It is why engine teardowns are underwritten on the LLP stack rather than on parts count.

What we do not have:we carry no per-part-number cycle limits and no remaining-life data. Those live in OEM Airworthiness Limitations Sections and in each unit's own trace file — neither is public, and neither can be inferred from registry, SDR or PMA data. Our life-limit tagging covers date- and shelf-controlled classes (oxygen, fire bottles, slides and rafts, batteries, pyrotechnics, tires, de-ice boots, fuel bladders, pressure vessels), not engine LLPs. Always price an LLP off its trace records.

Part Number	Description	Manufacturer	Airframe	ATA	Category	Status
3033481TA	Bearing, Ball, Annular Supplement 148	Extex Engineered Products Inc	—	72	Engine Accessories	PMA
3033914	TURBINE	—	Embraer EMB-120 Brasilia	72	Engine Accessories	OEM
3033916	OIL LINE	—	ATR 42-300 ATR 42	72	Engine Accessories	OEM
3033990	LINE	—	Dash 8-400 Dash 8	72	unknown	OEM
3033T25P01 5W	bushing vane	ge engine services dist llc	—	72	Engine Accessories	OEM
3033T39P01 5W	spacer vg	ge engine services dist llc	—	72	Engine Accessories	OEM
3033T39P02 5W	spacer	ge engine services dist llc	—	72	Consumables / Hardware	OEM
3033T60P01 5W	bushing vane stg1	ge engine services dist llc	—	72	Engine Accessories	OEM
3033T60P02 5W	bushing sleeve	ge engine services dist llc	—	72	Engine Accessories	OEM
3033T60P03 5W	bushing sleeve	ge engine services dist llc	—	72	Engine Accessories	OEM
3033T61P02 5W	ring piston	ge engine services dist llc	—	72	Engine Accessories	OEM
3033T62P01 5W	ring piston	ge engine services dist llc	—	72	Engine Accessories	OEM
3033T72G01 5W	shaft	ge engine services dist llc	—	72	Engine Accessories	OEM
3033T78G02	COVER	—	C340 Saab 340	72	unknown	OEM
3033T78G02 5W	cover axis a agb	ge engine services dist llc	—	72	Engine Accessories	OEM
3034051	GUIDE VANE	—	—	72	unknown	OEM
3034190	Non-Cleanable Oil Filter Element	—	—	72	Engine Accessories	OEM
3034254	Plate	—	—	72	Engine Accessories	OEM
3034254	Plate	—	—	72	Engine Accessories	OEM
3034256	Plug	—	—	72	Consumables / Hardware	OEM
3034256	Plug	—	—	72	Consumables / Hardware	OEM
3034385CL21	shrdsgm	other	—	72	Engine Accessories	OEM
3034393	Disposable Oil Filter Element	—	—	72	Engine Accessories	OEM
3034393A	FILTER	—	King Air 200	72	unknown
3034393WFC	OIL FILTER	—	1900D Beechcraft 1900	72	unknown	OEM
3034505	FILTER	—	—	72	unknown
3034508	OIL FILTER	—	ATR 72	72	Consumables / Hardware	PMA
3034677	TUBE	—	ATR 72	72	unknown	OEM
3034766	TUBE	—	ATR 72	72	unknown	OEM
3034778	OIL TUBE	—	—	72	Engine Accessories
3034954D	TURBINE	—	Embraer EMB-120 Brasilia	72	Engine Accessories
3035020	Kit, Bearing, First Stage. Reduction Supplement 97	—	—	72	Engine Accessories	OEM
3035020	Kit, Bearing, First Stage. Reduction Supplement 97	—	—	72	Engine Accessories	OEM
3035029	Kit, Bearing, First Stage Reduction	—	—	72	Engine Accessories	OEM
3035029	Kit, Bearing, First Stage Reduction	—	—	72	Engine Accessories	OEM
3035030	Parts Kit, Second-Stage Planet Gear Bearing	—	—	72	Engine Accessories	OEM
3035030	Parts Kit, Second-Stage Planet Gear Bearing	—	—	72	Engine Accessories	OEM
3035031	Parts Kit, First-Stage Planet Gear Bearing	—	—	72	Engine Accessories	OEM
3035031	Parts Kit, First-Stage Planet Gear Bearing	—	—	72	Engine Accessories	OEM
3035228	FUEL NOZZLE	—	1900D Beechcraft 1900	72	Fuel Systems
3035443	Wrapper	ONTIC Engineering & Manufacturing Inc	—	72	Engine Accessories	PMA
3035480	REDUCT GEARBOX	—	—	72	Engine Accessories	OEM
30355323	CARBON SEAL	HNYWL	—	72	Engine Accessories	OEM
3035567	SEAL ASSY	—	—	72	unknown	OEM
3035569	IMPELLER	—	Dash 8-400 Dash 8+1	72	unknown
30356475	BEARING	HNYWL	—	72	unknown	OEM
3035664	PT STATOR	—	Dash 8-400 Dash 8	72	Engine Accessories	OEM
3035673	SHROUD	—	C208 Caravan	72	unknown	OEM
30358005D	ENGINE	PWC	—	72	Engine Accessories	OEM
303587	RCF Seal 5.87" Series	RCF Technologies Inc	—	72	Consumables / Hardware	PMA