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
Y28925-35-4	Bushing- Flanged	—	757-200	63	Consumables / Hardware	OEM
Y28925-35-4	Bushing- Flanged	—	757-200	63	Consumables / Hardware	OEM
Y28925-AA-1	Bushing- Flanged	Able Aerospace Services, Inc.	757-200	63	Flight Controls	PMA
Y28925-AA-2	Bushing- Flanged	Able Aerospace Services, Inc.	757-200	63	Flight Controls	PMA
Y28925-AA-3	Bushing- Flanged	Able Aerospace Services, Inc.	757-200	63	Flight Controls	PMA
Y28925-AA-4	Bushing- Flanged	Able Aerospace Services, Inc.	757-200	63	Flight Controls	PMA
Y28BB10895	bearing five stack	airbus helicopters inc american eurocopter	—	63	Consumables / Hardware
Y28GB10947S1M72	ball bearing	airbus helicopters inc american eurocopter	—	63	Structures	OEM
ZARISEC135	TRANSMISSION	—	EC135	63	Structures	OEM
ZRB26300	TRANSMITTER	BOLKMS	EC135 EC145	63	Avionics / Electronics	OEM
ZRB27200	sensor pressure mgb	airbus helicopters inc american eurocopter	—	63	Instruments	OEM
ZRB37800	TRANSMITTER	UROCOP	EC135	63	Avionics / Electronics	OEM