ATA 77 — Engine Indicating

7,546 parts classified under this chapter

Reliability rollup

96%Median scrap propensity

1,516 parts · 4,652 SDR reports

From FAA Service Difficulty Reports

Part Number	Description	Manufacturer	Airframe	ATA	Category	Status
5316928-05	Housing Assy. Health Mgmt. Computer	Pratt & Whitney	—	77	Engine Accessories	OEM
5316947	Memory Unit Assy. Data Storage Health Management Computer System	Pratt & Whitney	—	77	Avionics / Electronics	PMA
5319107	TRANSDUCER - MOTIONAL PICKUP N1	—	—	77	Instruments	OEM
5319107	TRANSDUCER - MOTIONAL PICKUP N1	—	—	77	Instruments	OEM
5321876	Mounting Base Health Mgmt. Computer System	Pratt & Whitney	—	77	Engine Accessories	OEM
5322068	Arrester- Electrical Surge, Health Management Computer	Pratt & Whitney	—	77	Avionics / Electronics	PMA
5323908	SENSOR	HNYWL	A321 A321neo	77	unknown	OEM
5325972	HMU	—	A321 A321neo	77	Fuel Systems	OEM
5326786	SENSOR	PWA	A321 A321neo	77	Instruments	OEM
5326995-02	Housing Assy. Health Mgmt. Computer	Pratt & Whitney	—	77	Avionics / Electronics	PMA
5326995-04	Housing Assy, Health Mgmt. Computer System	Pratt & Whitney	—	77	Avionics / Electronics	PMA
535106	INDICATOR	TMECA	AS350 Ecureuil H125	77	Instruments	OEM
53516	TRANSMITTER	—	AS350 Ecureuil H125	77	Avionics / Electronics	OEM
53526	TORQUEMETER	—	AS350 Ecureuil H125	77	unknown	OEM
535634	DOWEL PIN	—	C310 C414+1	77	Consumables / Hardware	PMA
535899	Shaftgear Assembly, Bevel Tach Drive	—	—	77	Instruments	OEM
535899	Shaftgear Assembly, Bevel Tach Drive	—	—	77	Instruments	OEM
535908	Shaftgear Assembly, Bevel Tach Drive	—	—	77	Instruments	OEM
535908	Shaftgear Assembly, Bevel Tach Drive	—	—	77	Instruments	OEM
53603-390-1	POWER SUPPLY MODULE	—	A310	77	Instruments
53603-400-1	POWER SUPPLY MODULE	—	A300	77	Instruments
53603-410-1	PCB-PRINTED CIRCUIT BOARD	—	—	77	Avionics / Electronics
53603-420-1	DISPLAY CONTROL AND MAIN POINTER SERVO LOOP	—	A300 A310	77	Instruments
53603-420-2	DISPLAY CONTROL AND MAIN POINTER SERVO LOOP	—	A300	77	Instruments
53603-442-01	MICROPROCESSOR MODULE	—	—	77	Instruments
53603-443-01	MICROPROCESSOR MODULE	—	—	77	Instruments
53603-447-01	MICROPROCESSOR MODULE	—	A310	77	Instruments
53603-448-01	MICROPROCESSOR MODULE	—	—	77	Instruments
53603-449-01	MICROPROCESSOR MODULE	—	—	77	Instruments
53603-452-01	MICROPROCESSOR MODULE	—	—	77	Instruments
53603-453-01	PCB MICROPROCESSOR	—	—	77	Instruments
53603-454-01	MICROPROCESSOR MODULE	—	—	77	Instruments
53603-484-01	PCB MICROPROCESSOR	—	—	77	Instruments
53603-485-01	PCB MICROPROCESSOR	—	A300	77	Instruments
53603-500-1	SERVO SYSTEM MODULE	—	—	77	Instruments
53603-542-1	INPUT ADAPTATION MODULE	—	—	77	Instruments
53603-547-1	INPUT ADAPTATION MODULE	—	A310	77	Instruments
53603-548-1	INPUT ADAPTATION MODULE	—	—	77	Instruments
53603-549-1	INPUT ADAPTATION MODULE	—	—	77	Instruments
53603-552-1	INPUT ADAPTATION MODULE	—	—	77	Instruments
53603-554-1	INPUT ADAPTATION MODULE	—	—	77	Instruments
53603-555-1	PCB,INPUT	—	—	77	Instruments
53603-556-1	PCB,INPUT	—	A300	77	Instruments
53603-622-1	OUTPUT MODULE	—	—	77	Instruments
53603-627-1	OUTPUT MODULE	—	A310	77	Instruments
53603-628-1	OUTPUT MODULE	—	—	77	Instruments
53603-632-1	OUTPUT MODULE	—	A300	77	Instruments
53603-634-1	OUTPUT MODULE	—	—	77	Instruments
537850	—	Pratt & Whitney	DC-9 MD-80+2	77	Engine Accessories
53T386	Thermocouple	—	—	77	Avionics / Electronics	OEM