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
S6135-20657-1	Coupling	—	—	63	Consumables / Hardware	OEM
S6135-20665-1	Liner	—	—	63	unknown	OEM
S6135-20667-1	Shim	—	—	63	Consumables / Hardware	OEM
S6135-20670-045	Housing Lower L&S	—	—	63	unknown	OEM
S6135-20673-4	Set Screw	—	—	63	unknown	OEM
S6135-20681-001	gear driver	sikorsky aircraft corporation	—	63	Electromechanical	OEM
S6135-20681-1	Gear Driver	—	—	63	unknown	OEM
S6135-20682-001	gear driven	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
S6135-20682-002	gear driven	sikorsky aircraft corporation	—	63	Powerplant / Nacelle	OEM
S6135-20682-1	Gear	—	—	63	unknown	OEM
S6135-20684-001	shaft	sikorsky aircraft corporation	—	63	Electromechanical	OEM
S6135-20687-001	geardriver	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
S6135-20688-001	housing assy	sikorsky aircraft corporation	—	63	Powerplant / Nacelle	OEM
S6135-20695-001	gear housing	sikorsky aircraft corporation	—	63	Electromechanical	OEM
S6135-20695-002	gear hsg	sikorsky aircraft corporation	—	63	Powerplant / Nacelle	OEM
S6135-20695-003	gear hsg	sikorsky aircraft corporation	—	63	Electromechanical	OEM
S6135-20695-004	gear hsg	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
S6135-20695-3	Gear, Housing	—	—	63	unknown	OEM
S6135-20702-2	Gimbal Ring Assembly	—	—	63	unknown	OEM
S6135-20705-000	Drive Shaft	—	—	63	unknown	OEM
S6135-20705-000	Drive Shaft	—	—	63	unknown	OEM
S6135-20721-003	tube assy	sikorsky aircraft corporation	—	63	Structures	OEM
S6135-20721-019	tube assy	sikorsky aircraft corporation	—	63	Structures	OEM
S6135-20721-1	Tube Assembly	—	—	63	Consumables / Hardware	OEM
S6135-20723-0	Plug	—	—	63	Consumables / Hardware	OEM
S6135-20724-101	pilot forward	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
S6135-20733-006	strainer assy	sikorsky aircraft corporation	—	63	Powerplant / Nacelle	OEM
S6135-20733-1	Strainer Assembly	—	—	63	unknown	OEM
S6135-20733-5	Screen	—	—	63	Avionics / Electronics	OEM
S6135-20733-6	Strainer Assembly	—	—	63	unknown	OEM
S6135-20740-1	Cap Assembly	—	—	63	unknown	OEM
S6135-20746-001	support	sikorsky aircraft corporation	—	63	Structures	OEM
S6135-20747-001	spacer	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
S6135-20748-001	ring	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
S6135-20754-002	bushing	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
S6135-20754-104	bushing	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
S6135-20756-003	spur gear	sikorsky aircraft corporation	—	63	Electromechanical	OEM
S6135-20756-008	helical gear	sikorsky aircraft corporation	—	63	Electromechanical	OEM
S6135-20756-009	spur gear	sikorsky aircraft corporation	—	63	Structures	OEM
S6135-20756-9	Gear Spur	—	—	63	unknown	OEM
S6135-20761-1	SHAFT	—	—	63	unknown	OEM
S6135-20761-1	SHAFT	—	—	63	unknown	OEM
S6135-20762-3	Gear	—	—	63	unknown	OEM
S6135-20783-002	sleeve	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
S6135-20783-2	Sleeve	—	—	63	Consumables / Hardware	OEM
S6135-20786-001	screen assy	sikorsky aircraft corporation	—	63	Powerplant / Nacelle	OEM
S6135-20787-002	ret.plate	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
S6135-20791-004	hose assy	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
S6135-20791-006	hose ay	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
S6135-20818-001	plunger	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM