ATA 63 — Main Rotor Drive(s)

6,080 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
369A5350605	CLUTCH	—	MD 500	63	Electromechanical	OEM
369A53515	HOUSING	—	MD 500	63	unknown	OEM
369A5358	LOCKWASHER	—	MD 500	63	Consumables / Hardware	OEM
369A5361	BEARING	—	MD 500	63	unknown
369A5363	BEARING	—	MD 500	63	unknown
369A5364	SPRAG CLUTCH	HUGHES	MD 500	63	Flight Controls	OEM
369A5408-003	gear shaft	other	MD 500	63	Engine Accessories	OEM
369A5416	Spacer, Coupling-Input	—	—	63	rotor drive component	OEM
369A56553	BEARING	—	MD 500	63	unknown	OEM
369A7356	Drive Gear	—	MD 500	63	—	OEM
369A7356	Drive Gear	—	MD 500	63	—	OEM
369A7365	Gear Assy	—	MD 500	63	—	OEM
369A7365	Gear Assy	—	MD 500	63	—	OEM
369D21500505	TRANSMISSION	—	MD 500	63	Electromechanical	OEM
369D21500507	GEARBOX	HUGHES	MD 500	63	Flight Controls	OEM
369D22570411	LINE	—	MD 500	63	unknown	OEM
369D25100501	TRANSMISSION	—	MD 500	63	Electromechanical	OEM
369D25100505	TRANSMISSION	—	MD 500	63	Structures	OEM
369D25100507	TRANSMISSION	—	MD 500	63	Structures	OEM
369D25100901	TRANSMISSION	—	MD 500	63	Electromechanical	OEM
369D25102SN006	TRANSMISSION	—	MD 500	63	Electromechanical	OEM
369D251141	HOUSING	—	MD 500	63	unknown
369D2512111	PINION SHAFT	—	MD 500	63	Electromechanical	OEM
369D2512311	BEVEL GEAR	DOUG	MD 500	63	Structures	OEM
369D2512513	BEARING	—	MD 500	63	unknown
369D251253	SHAFT	—	MD 500	63	Electromechanical	OEM
369D2512711	GEAR TOOTH	—	MD 500	63	Structures	OEM
369D25132-3	Output Shaft Assembly	—	MD 500	63	—	OEM
369D25132-3	Output Shaft Assembly	—	MD 500	63	—	OEM
369D25132BSC	OUTPUT SHAFT	—	MD 500	63	Electromechanical	OEM
369D25140	BEARING	—	MD 500	63	unknown	OEM
369D25143	BEARING	—	MD 500	63	unknown
369D25144	BEARING	—	MD 500	63	unknown	OEM
369D25146	BEARING RACE	—	MD 500	63	Consumables / Hardware	OEM
369D25149	BEARING	—	MD 500	63	unknown
369D2514C	BEARING	—	MD 500	63	unknown
369D2516421	NOZZLE	—	MD 500	63	Engine Accessories	OEM
369D25167D	PUMP	HUGHES	MD 500	63	Hydraulics	OEM
369D25201	Input Shaft Sleeve Assy.	—	MD 500	63	rotor drive component	OEM
369D25201	Input Shaft Sleeve Assy.	—	MD 500	63	Electromechanical	OEM
369D25351	SPRAG CLUTCH	DOUG	MD 500	63	Engine Accessories	OEM
369D25351DSN	SPRAG CLUTCH	—	MD 500	63	Structures	OEM
369D25351SN58	SPRAG CLUTCH	—	MD 500	63	Electromechanical	OEM
369D25416	BEARING	—	MD 500	63	unknown	OEM
369D2551021	DRIVE SHAFT	—	MD 500	63	Electromechanical	OEM
369D25621	PULLEY GUARD	—	MD 500	63	Flight Controls	unknown
369D25623	BELT	—	MD 500	63	Electromechanical	OEM
369D25630	BLOWER	—	MD 500	63	Electromechanical	OEM
369D2570411	LINE	—	MD 500	63	unknown
369D2570421	HOSE	—	MD 500	63	unknown	OEM