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
S6135-20147-2	HOUSINGASSY	—	—	63	unknown	OEM
S6135-20147-2	HOUSINGASSY	—	—	63	unknown	OEM
S6135-20148-1	Splined Cplg.Fwd.	—	—	63	unknown	OEM
S6135-20148-2	Splined Cplg.Fwd.	—	—	63	unknown	OEM
S6135-20148-6	Thru Shaft Assembly	—	—	63	unknown	OEM
S6135-20150-000	housing	sikorsky aircraft corporation	—	63	Powerplant / Nacelle	OEM
S6135-20181-002	gear	sikorsky aircraft corporation	—	63	Electromechanical	OEM
S6135-20181-003	gear	sikorsky aircraft corporation	—	63	Electromechanical	OEM
S6135-20186-4	Shaft	—	—	63	unknown	OEM
S6135-20191-0	Cage-Gen Idler	—	—	63	unknown	OEM
S6135-20191-001	cage	sikorsky aircraft corporation	—	63	Powerplant / Nacelle	OEM
S6135-20208-002	quill shaft	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
S6135-20272-000	breather	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
S6135-20311-002	stud	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
S6135-20320-000	brg.sleeve	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
S6135-20350-1	Jet	—	—	63	unknown	OEM
S6135-20350-2	Jet	—	—	63	unknown	OEM
S6135-20362-1	Spring	—	—	63	Consumables / Hardware	OEM
S6135-20401-003	plug assy	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
S6135-20407-203	tube	sikorsky aircraft corporation	—	63	Structures	OEM
S6135-20407-206	Tube Assembly.	—	—	63	Consumables / Hardware	OEM
S6135-20407-206	Tube Assembly.	—	—	63	Consumables / Hardware	OEM
S6135-20407-208	tube	sikorsky aircraft corporation	—	63	Structures	OEM
S6135-20407-213	Tube Assembly.	—	—	63	Consumables / Hardware	OEM
S6135-20407-213	Tube Assembly.	—	—	63	Consumables / Hardware	OEM
S6135-20407-267	tube assy	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
S6135-20433-104	MANIFOLD GEARBOX	—	—	63	unknown	OEM
S6135-20433-104	MANIFOLD GEARBOX	—	—	63	unknown	OEM
S6135-20600-045	gearbox assy	sikorsky aircraft corporation	S-61	63	Flight Controls	OEM
S6135-20603-001	hsg and liner assy	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
S6135-20606-013	input housing	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
S6135-20606-045	Housing & Cover (matched set)	—	—	63	unknown	OEM
S6135-20608-003	gear	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
S6135-20608-3	Gear, Spur	—	—	63	unknown	OEM
S6135-20612-1	Nut, Spaner	—	—	63	unknown	OEM
S6135-20614-041	cam assy	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
S6135-20619-1	Cover & Liner Assembly	—	—	63	unknown	OEM
S6135-20625-004	bevel gear	sikorsky aircraft corporation	—	63	Electromechanical	OEM
S6135-20626-1	Spacer	—	—	63	Consumables / Hardware	OEM
S6135-20629-102	Housing Lower	—	—	63	unknown	OEM
S6135-20629-103	Housing Lower	—	—	63	unknown	OEM
S6135-20629-104	Housing Lower	—	—	63	unknown	OEM
S6135-20630-005	liner	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
S6135-20630-1	Liner	—	—	63	unknown	OEM
S6135-20633-001	piston torq met	sikorsky aircraft corporation	—	63	Powerplant / Nacelle	OEM
S6135-20639-101	Input Housing	—	—	63	unknown	OEM
S6135-20639-103	Input Housing	—	—	63	unknown	OEM
S6135-20639-17	Input Housing	—	—	63	unknown	OEM
S6135-20639-20	Input Housing	—	—	63	unknown	OEM
S6135-20643-003	yoke	sikorsky aircraft corporation	—	63	Electromechanical	OEM