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
R6135-64053-105	housing	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
R6135-64056-1	liner	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
R6135-64057-1	tube assembly	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
R6135-64058-1	bushing assembly	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
R6135-64129-3	shaft busing assembly	sikorsky aircraft corporation	—	63	Electromechanical	OEM
R6135-64129-4	shaft assembly section iv	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
R6135-66221-0	houring input	sikorsky aircraft corporation	—	63	Powerplant / Nacelle	OEM
R6135-66225-0	spiral	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
R6135-66227-0	liner	sikorsky aircraft corporation	—	63	Structures	OEM
R6135-66232-17	spacer	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
R6135-66233-1	spacer	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
R6135-66233-6	spacer	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
R6135-66235-0	breather	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
R6135-66248-3	window	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
R6135-66248-4	window	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
R6135-66253-0	jaw	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
R6135-66255-1	rubber strip	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
R6135-66322-1	seal plug	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
R6135-66426-2	liner	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
R6135-66503-1	flange	sikorsky aircraft corporation	—	63	Electromechanical	OEM
R6135-66612-6	gear shaft assembly	sikorsky aircraft corporation	—	63	Electromechanical	OEM
R6135-66629-0	gear shaft	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
R6135-66705-41	beam assembly	sikorsky aircraft corporation	—	63	Structures	OEM
R6135-66706-2	shaft assembly	sikorsky aircraft corporation	—	63	Powerplant / Nacelle	OEM
R6135-66711-101	shim	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
R61350-20879-101	washer lock	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
R61350-24015-101	splined coupling	sikorsky aircraft corporation	—	63	Electromechanical	OEM
R61350-24700-101	stud	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
R61350-64159-101	plate upper	sikorsky aircraft corporation	—	63	Structures	OEM
R61350-64161-041	plates planetary	sikorsky aircraft corporation	—	63	Electromechanical	OEM
R6135K-20733-1	strainer assembly	sikorsky aircraft corporation	—	63	Powerplant / Nacelle	OEM
R6137-23037-8	jet assembly	sikorsky aircraft corporation	—	63	Powerplant / Nacelle	OEM
R6137-23050-1	gear helical	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
R6137-23051-2	gear	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
R6137-23055-1	sun gear main gear box	sikorsky aircraft corporation	—	63	Structures	OEM
R6137-23056-2	gear	sikorsky aircraft corporation	—	63	Powerplant / Nacelle	OEM
R6137-64325-1	housing inner	sikorsky aircraft corporation	—	63	Powerplant / Nacelle	OEM
R6137-64367-2	spacer	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
R6137-64372-1	disc assembly	sikorsky aircraft corporation	—	63	Powerplant / Nacelle	OEM
R6140-61631-2	shaft assembly	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
R6140-61631-3	shaft assembly	sikorsky aircraft corporation	—	63	Engine Accessories	OEM
R6435-20279-103	ring	sikorsky aircraft corporation	—	63	Consumables / Hardware	OEM
RA13212	BOLT	—	—	63	Consumables / Hardware	OEM
Report AA-94006	Drive Train Seals	Bell Helicopter Textron Inc (formerly Aeronautical Accessories Inc)	Bell 206	63	Consumables / Hardware	PMA
Report No. RW101, dtd 11/23/88 or later FAA Approval	Gear Box Breather System	Rotor Wing Inc	—	63	Engine Accessories	PMA
RF981213	ADAPTER	—	S-76	63	unknown	OEM
RG36343	SHAFT	—	—	63	Structures	OEM
RH2113	OIL COOLER	—	AS350 Ecureuil H125	63	Engine Accessories
RH2508	OIL COOLER	—	AS350 Ecureuil H125	63	Engine Accessories	OEM
RMHA-000029-10	HANGER BEARING 1 ACCEL	Sterling Helicopter	Bell 407	63	Instruments	PMA