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
S6135-20842-1	Bushing Assembly	—	—	63	unknown	OEM
S6135-20851-001	shaft	sikorsky aircraft corporation	—	63	Electromechanical	OEM
S6135-20863-002	bolt	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
S6135-20873-1	Nut	—	—	63	Consumables / Hardware	OEM
S6135-20954-5	Gear Shaft Idler	—	—	63	unknown	OEM
S6135-20955-004	gear shaft	sikorsky aircraft corporation	—	63	Powerplant / Nacelle	OEM
S6135-20957-001	adapter splined	sikorsky aircraft corporation	—	63	Powerplant / Nacelle	OEM
S6135-20957-002	pinion	sikorsky aircraft corporation	—	63	Electromechanical	OEM
S6135-20957-2	Splined Adapter	—	—	63	unknown	OEM
S6135-20968-002	Tube	—	—	63	Consumables / Hardware	OEM
S6135-20968-002	Tube	—	—	63	Consumables / Hardware	OEM
S6135-20968-005	cap assy-lwr	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
S6135-20968-3	Cap	—	—	63	Consumables / Hardware	OEM
S6135-20970-001	quill shaft	sikorsky aircraft corporation	—	63	Electromechanical	OEM
S6135-20970-1	QUILL SHAFT	—	—	63	Electromechanical	OEM
S6135-22017-041	spur r gr-plug	sikorsky aircraft corporation	—	63	Electromechanical	OEM
S6135-22017-3	RING, GEAR	—	S-61	63	unknown	OEM
S6135-22020-002	shaft outer	sikorsky aircraft corporation	—	63	Powerplant / Nacelle	OEM
S6135-22024-001	liner lower	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
S6135-22024-1	Liner	—	—	63	unknown	OEM
S6135-22063-1	Liner	—	—	63	unknown	OEM
S6135-22069-001	oil fitting	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
S6135-22072-001	crown cplg	sikorsky aircraft corporation	—	63	Powerplant / Nacelle	OEM
S6135-22072-1	Coupling	—	—	63	Consumables / Hardware	OEM
S6135-22074-011	elbow	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
S6135-64001-001	Shaft Assembly.	—	—	63	unknown	OEM
S6135-64001-001	Shaft Assembly.	—	—	63	unknown	OEM
S6135-64001-041	Shaft Assembly.	—	—	63	unknown	OEM
S6135-64001-041	Shaft Assembly.	—	—	63	unknown	OEM
S6135-64002-041	Shaft Assembly.	—	—	63	unknown	OEM
S6135-64002-041	Shaft Assembly.	—	—	63	unknown	OEM
S6135-64003-001	Shaft Assembly.	—	—	63	unknown	OEM
S6135-64003-001	Shaft Assembly.	—	—	63	unknown	OEM
S6135-64003-041	Shaft Assembly.	—	—	63	unknown	OEM
S6135-64003-041	Shaft Assembly.	—	—	63	unknown	OEM
S6135-64003-3	Shaft Assembly Section III	—	—	63	unknown	OEM
S6135-64007-000	Housing	—	—	63	unknown	OEM
S6135-64007-000	Housing	—	—	63	unknown	OEM
S6135-64008	Housing Assembly Bearing	—	—	63	unknown	OEM
S6135-64013-0	Flange Coupling	—	—	63	unknown	OEM
S6135-64014-000	plate	sikorsky aircraft corporation	—	63	Structures	OEM
S6135-64015	Shaft Stub Coupling	—	—	63	unknown	OEM
S6135-64017-001	Shaft	—	—	63	unknown	OEM
S6135-64017-001	Shaft	—	—	63	unknown	OEM
S6135-64017-003	Shaft	—	—	63	unknown	OEM
S6135-64017-003	Shaft	—	—	63	unknown	OEM
S6135-64017-1	Shaft	—	—	63	unknown	OEM
S6135-64018	Shaft Section II	—	—	63	unknown	OEM
S6135-64023-000	Liner	—	—	63	unknown	OEM
S6135-64023-000	Liner	—	—	63	unknown	OEM