ATA 63 — Main Rotor Drive(s)

4,983 parts classified under this chapter

Reliability rollup

100%Median scrap propensity

1,494 parts · 4,374 SDR reports

From FAA Service Difficulty Reports

Part Number	Description	Manufacturer	Airframe	ATA	Category	Status
4639312025	SHAFT SEAL	—	—	63	Consumables / Hardware	OEM
4639313009	stob shaft	other	—	63	Flight Controls	OEM
4639314002	stub shaft	airbus helicopters inc american eurocopter	—	63	Flight Controls	OEM
4647010003	TRANSMISSION	UROCOP	EC135	63	Engine Accessories	OEM
4649001007	TRANSMISSION	—	EC135	63	Electromechanical	OEM
4649004045	COLLECTOR	—	EC135	63	Structures	OEM
4649005005	SEAL	—	EC135	63	Consumables / Hardware	OEM
46490100008	TRANSMISSION	UROCOP	EC135	63	Structures	OEM
4649010006	TRANSMISSION	—	EC135	63	Electromechanical	OEM
4649010008	TRANSMISSION	—	EC135	63	Structures	OEM
4649010008X	TRANSMISSION	—	EC135	63	Engine Accessories	OEM
4649010009	spare part mgb	airbus helicopters inc american eurocopter	—	63	Structures	OEM
4649010010	TRANSMISSION	UROCOP	EC135	63	Engine Accessories	OEM
4649010011	spare part mgb	airbus helicopters inc american eurocopter	—	63	Electromechanical	OEM
464901008	GEARBOX	—	EC135	63	Structures	OEM
4649020010	TRANSMISSION	—	EC135	63	Structures	OEM
4649020011	GEARBOX	Airbus	A320 A300+1	63	Structures	OEM
4649201017	transm.cover modified	Eurocopter	—	63	Engine Accessories	OEM
4649201018	transmission cover	airbus helicopters inc american eurocopter	—	63	Flight Controls	OEM
4649203008	intermediate shaft assy	airbus helicopters inc american eurocopter	—	63	Engine Accessories	OEM
4649205004	NUT	—	EC135	63	Consumables / Hardware	OEM
4649205010	SPACER	UROCOP	EC135	63	Consumables / Hardware	OEM
4649302025	freewheel shaft	airbus helicopters inc american eurocopter	—	63	Electromechanical	OEM
4649302041	PINION GEAR	Airbus	EC135	63	Structures	OEM
4656030AK501	CLOSEOUT ASSY DÃ‰COR COVER	Safran Cabin Inc.	CRJ-200 AS365 Dauphin	63	Structures	OEM
468246	Spacer Assembly, 2nd to 3rd Stage	—	—	63	unknown	OEM
468246	Spacer Assembly, 2nd to 3rd Stage	—	—	63	unknown	OEM
468246AA	Spacer Assembly, 2nd to 3rd Stage	Able Aerospace Services, Inc.	—	63	Flight Controls	PMA
468247	Spacer, 3rd to 4th Stage	—	—	63	unknown	OEM
468247	Spacer, 3rd to 4th Stage	—	—	63	unknown	OEM
468247AA	Spacer, 3rd to 4th Stage	Able Aerospace Services, Inc.	—	63	Flight Controls	PMA
469010008	TRANSMISSION	UROCOP	EC135	63	Electromechanical	OEM
47-612-321-1	Fitting, Sprag Support	—	—	63	unknown	OEM
47-612-321-1	Fitting, Sprag Support	—	—	63	unknown	OEM
47-620-665-1	Roller, Pinion, Upper Planetary, Trans.	—	—	63	Powerplant / Nacelle	OEM
47-620-665-1	Roller, Pinion, Upper Planetary, Trans.	—	—	63	Powerplant / Nacelle	OEM
47-620-666-1	Roller, Pinion, Upper Planetary, Trans.	—	—	63	unknown	OEM
47-620-666-1	Roller, Pinion, Upper Planetary, Trans.	—	—	63	unknown	OEM
47-620-961-1	Spider set, planetary, lower transmission	—	—	63	unknown	OEM
47-620-961-1	Spider set, planetary, lower transmission	—	—	63	unknown	OEM
47-620-964-1	Roller, Cylindrical, Lower Planetary Bearing, Transmission	—	—	63	unknown	OEM
47-620-964-1	Roller, Cylindrical, Lower Planetary Bearing, Transmission	—	—	63	unknown	OEM
47-620-968-1	Cushion - Free Wheeling Spring, Transmission	—	—	63	unknown	OEM
47-620-968-1	Cushion - Free Wheeling Spring, Transmission	—	—	63	unknown	OEM
47-644-130-11 Bell Helicopter	Coupling	—	—	63	Consumables / Hardware	OEM
47-644-130-11 Bell Helicopter	Coupling	—	—	63	Consumables / Hardware	OEM
47-644-131-2 Bell Helicopter	Coupling	—	—	63	Consumables / Hardware	OEM
47-644-131-2 Bell Helicopter	Coupling	—	—	63	Consumables / Hardware	OEM
476205302	SHAFT	—	—	63	Structures	OEM
476205321	BEARING	—	—	63	unknown