ATA 63 — Main Rotor Drive(s)

6,076 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
256W3410-17	TRANSMISSION ASSY - P	Moog	777-300ER 777-200LR+1	63	Engine Accessories	PMA
256W3410-18	TRANSMISSION ASSY - P	Moog	777-200LR	63	Engine Accessories	PMA
256W3410-20	TRANSMISSION ASSY - P	Moog	777-300ER 777-200LR+1	63	Engine Accessories	PMA
256W3410-5	TRANSMISSION ASSY - P	Moog	777-200 777-300+1	63	Engine Accessories	PMA
256W3410-6	TRANSMISSION ASSY - P	Moog	777-200 777-300+1	63	Engine Accessories	PMA
256W3410-9	TRANSMISSION ASSY - P	Moog	777-200 777-300ER+1	63	Engine Accessories	PMA
2601100005	GEARBOX	—	Bell 206 Bell 206L LongRanger	63	Structures	OEM
26028951	FAN	—	Bell 206 Bell 206L LongRanger	63	Environmental / Cabin	OEM
2609119	Rotor Drive Key	—	MD-81 MD-82+2	63	—	OEM
2609119	Rotor Drive Key	—	MD-81 MD-82+2	63	—	OEM
2609119AES	Rotor Drive Key	Aviation Engineered Services	MD-81 MD-82+2	63	Powerplant / Nacelle	PMA
264321	BEARING	—	Bell 206	63	unknown
269A18135	THRUST BEARING	—	—	63	Consumables / Hardware	OEM
269A4611	SWITCH	—	—	63	Electromechanical	OEM
269A5050-040	grease lube spherical bearing	other	MD 500	63	Consumables / Hardware	OEM
269A505073	BEARING	—	—	63	unknown
269A505074	BEARING	—	—	63	unknown
269A5051-010	m-r transmission cone	other	MD 500	63	Engine Accessories	OEM
269A5051-011	m-r transmission cup	other	—	63	Engine Accessories	OEM
269A5051-020	m-r transmission bearing	other	MD 500	63	Consumables / Hardware	OEM
269A505120	BEARING	—	—	63	unknown	OEM
269A510341	PINION	—	—	63	Engine Accessories	OEM
269A510351	PINION GEAR	—	—	63	Electromechanical	OEM
269A51039	PINION GEAR	—	—	63	Electromechanical	OEM
269A5104	GEAR TOOTH	—	—	63	Structures	OEM
269A5104-005	m-r transmission ring gear	other	MD 500	63	Flight Controls	OEM
269A51045	GEAR	—	—	63	unknown
269A5154	SHAFT	—	—	63	Electromechanical	OEM
269A517515	CASE	—	—	63	unknown
269A5193001	CARRIAGE	—	—	63	Flight Controls	OEM
269A5305109	SHAFT	—	—	63	Structures	OEM
269A54021	NUT	—	—	63	Consumables / Hardware	OEM
269A54301	SPLINE	—	—	63	Electromechanical	OEM
269A5437	belt drive spacer	other	MD 500	63	Consumables / Hardware	OEM
269A546	HUB	—	—	63	Structures	OEM
269A5472	PULLEY BRACKET	HUGHES	—	63	Flight Controls	OEM
269A5480	SPRING	—	—	63	Consumables / Hardware	OEM
269A5490	FITTING	—	—	63	unknown
269A54979	SHAFT	—	—	63	Structures	OEM
269A5498005	SHAFT	—	—	63	Structures	OEM
269A5509-003	synthetic rubber grease retainer	other	—	63	Consumables / Hardware	PMA
269A5512	DRIVE BELT	—	—	63	Engine Accessories	OEM
269A55177	BRACKET	—	—	63	unknown	OEM
269A5527	BUSHING	—	—	63	unknown	OEM
269A55593	COUPLING	—	—	63	Electromechanical	OEM
269A5565-803	h-frame ass y-330 belt drive	other	MD 500	63	Engine Accessories	OEM
269A5582	IDLER PULLEY	—	—	63	Electromechanical	OEM
269A55907	RETAINER	—	—	63	Consumables / Hardware	OEM
269A55909	CLUTCH CABLE	—	—	63	Electromechanical	OEM
269A59993	BOOT	—	—	63	Consumables / Hardware	OEM