ATA 63 — Main Rotor Drive(s)

6,045 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
204040701101	BEVEL GEAR TOOTH	—	Bell 412 Bell 212	63	Structures	OEM
204040701103	BEVEL GEAR	—	Bell 412 Bell 204+1	63	Electromechanical	OEM
204040725003	ROLLER SET	—	Bell 412 Bell 204	63	Consumables / Hardware	unknown
204040760003	FILTER	—	Bell 412 Bell 204	63	unknown
204040783003	SPIDER	—	Bell 204 Bell 212	63	unknown
204040785003	SPIDER	—	Bell 412 Bell 204+1	63	unknown
204060448001	BLOWER	—	Bell 204	63	Environmental / Cabin	OEM
204076036005	MASTER CYLINDER	—	Bell 412 Bell 204+1	63	Hydraulics	OEM
205030164073	MOUNT	—	Bell 205	63	unknown	OEM
205040001101	TRANSMISION	Bell	—	63	Engine Accessories	OEM
2050401767	BOOT	—	Bell 205	63	Consumables / Hardware	OEM
205040187001	GASKET	—	Bell 204 Bell 205	63	Consumables / Hardware	OEM
205040229003	SUN GEAR	—	Bell 412EP	63	Electromechanical	OEM
205040230003	SUN GEAR TOOTH	—	Bell 412 Bell 205	63	Electromechanical	OEM
205040231009	RING GEAR	—	Bell 412 Bell 205+1	63	Engine Accessories	OEM
205040233101	SPUR GEAR	—	Bell 205	63	Electromechanical	OEM
205040242001	BEARING	—	Bell 205	63	unknown
205040245001	DRIVE GEAR	—	Bell 412 Bell 205	63	Engine Accessories	OEM
205040246003	BEARING RACE	—	Bell 212	63	Structures	OEM
205040249001	BEARING	—	Bell 412 Bell 205	63	unknown	OEM
205040249003	BEARING	—	Bell 205 Bell 212	63	unknown	OEM
205040263003	QUILL	—	Bell 205	63	Structures	OEM
205040785003	SPIDER GEAR	—	Bell 205	63	Structures	OEM
205060512	RELIEF VALVE	—	Bell 412 Bell 205	63	Hydraulics	OEM
205076034007	FILTER ELEMENT	—	Bell 412 Bell 205	63	Hydraulics	OEM
20562	pressure plate	airbus helicopters inc american eurocopter	—	63	Structures	OEM
206-010-245-101	Sleeve	—	Bell 206	63	—	OEM
206-010-245-101	Sleeve	—	Bell 206	63	—	OEM
206-011-124-005S	Plate	—	Bell 206 Bell 206L LongRanger	63	—	OEM
206-011-124-005S	Plate	—	Bell 206 Bell 206L LongRanger	63	—	OEM
206-011-150-107	Fitting	—	Bell 206 Bell 206L LongRanger	63	—	OEM
206-011-150-107	Fitting	—	Bell 206 Bell 206L LongRanger	63	—	OEM
206-011-154-105	Strap Assembly	—	Bell 206	63	—	OEM
206-011-154-105	Strap Assembly	—	Bell 206	63	—	OEM
206-011-727-001	Bushing	—	Bell 206 Bell 407+1	63	—	OEM
206-011-727-001	Bushing	—	Bell 206 Bell 407+1	63	—	OEM
206-011-732-001	Sleeve	—	Bell 206 Bell 206L LongRanger	63	—	OEM
206-011-732-001	Sleeve	—	Bell 206 Bell 206L LongRanger	63	—	OEM
206-031-509-103	Assembly, Drag Pin	—	Bell 206	63	—	OEM
206-031-509-103	Assembly, Drag Pin	—	Bell 206	63	—	OEM
206-031-513-101	Bushing	—	Bell 206	63	—	OEM
206-031-513-101	Bushing	—	Bell 206	63	—	OEM
206-040-048-101	Adapter	—	Bell 206 Bell 206L LongRanger	63	—	OEM
206-040-048-101	Adapter	—	Bell 206 Bell 206L LongRanger	63	—	OEM
206-040-061-001	Liner	—	Bell 206	63	—	OEM
206-040-061-001	Liner	—	Bell 206	63	—	OEM
206-040-062-003	Plate	—	Bell 206 Bell 206L LongRanger	63	—	OEM
206-040-062-003	Plate	—	Bell 206 Bell 206L LongRanger	63	—	OEM
206-040-184-1	Oil Pump Assembly Model GC-2051	—	—	63	Engine Accessories	OEM
206-040-537-001	Liner	—	Bell 206 Bell 206L LongRanger	63	—	OEM