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
50P109	Thermocouple	—	—	77	Instruments	OEM
50P109	Thermocouple	—	—	77	Instruments	OEM
50P228	Harness & Box Ass'y	—	—	77	Instruments	OEM
50P392	Thermocouple- Immersion	—	—	77	Instruments	OEM
50P392	Thermocouple- Immersion	—	—	77	Avionics / Electronics	OEM
50P487	Thermocouple Box and Cable	—	—	77	Instruments	OEM
50P487	Thermocouple Box and Cable	—	—	77	Instruments	OEM
50PO66	Thermocouple	—	—	77	Instruments	OEM
50PO66	Thermocouple	—	—	77	Instruments	OEM
50U030	Cable, Thermocouple EGT	—	—	77	Instruments	OEM
50U030	Cable, Thermocouple EGT	—	—	77	Instruments	OEM
50U448	Thermocouple- Immersion, TCA	—	—	77	Avionics / Electronics	OEM
50U448	Thermocouple- Immersion, TCA	—	—	77	Instruments	OEM
50U448 (Pratt & Whitney)	Thermocouple, Turbine Cooling Air	—	—	77	Instruments	OEM
50U448 (Pratt & Whitney)	Thermocouple, Turbine Cooling Air	—	—	77	Instruments	OEM
510224	—	Pratt & Whitney	DC-9 MD-80+2	77	Engine Accessories
510662-2	Transmitter	Honeywell	707 720	77	Interior / Furnishings	PMA
510662-5	TRANSDUC	Honeywell	707	77	Instruments	OEM
510784-1	Indicator	Honeywell	707 720	77	Interior / Furnishings	PMA
510784-5-1	INDICATOR	Honeywell	707	77	Instruments	OEM
510784-6-1	INDICATOR	Honeywell	707	77	Instruments	OEM
510784-7-1	INDICATOR	Honeywell	707	77	Instruments	OEM
510784-8-1	INDICATOR	Honeywell	707	77	Instruments	OEM
511193	—	Pratt & Whitney	DC-9 MD-80+2	77	Engine Accessories
511194	—	Pratt & Whitney	DC-9 MD-80+2	77	Engine Accessories
511749	TUBE ASSY	—	727-200 737-200+1	77	Instruments	OEM
511863	PT7 TUBE ASSY	—	737-200 737	77	Consumables / Hardware	PMA
51198	INDICATOR	—	PA-31 Navajo	77	unknown
512722	INDICATOR	—	—	77	unknown	OEM
515019-1	Stator, Generator	Unison Industries LLC	—	77	Instruments	PMA
515020-1	Rotor, Generator	Unison Industries LLC	—	77	Instruments	PMA
515546-1	Sensor, Temperature -T3	Unison Industries LLC	—	77	Instruments	PMA
515876-1	T3 Sensor	Unison Industries LLC	—	77	Instruments	PMA
517082-3	Sensor, T25	Unison Industries LLC	—	77	Instruments	PMA
517103-2	Sensor, T12	Unison Industries LLC	—	77	Instruments	PMA
517113-1	Sensor, Temperature - Core Compartment	Unison Industries LLC	—	77	Instruments	PMA
517292-2	Sensor Probe, Exhaust Gas Temperature T49	Unison Industries LLC	—	77	Instruments	PMA
517386-3	Sensor, Compressor Discharge – T3	Unison Industries LLC	—	77	Instruments	PMA
517794-1	Probe, EGT	Unison Industries LLC	—	77	Instruments	PMA
518021-1	Sensor, Oil Temperature	Unison Industries LLC	—	77	Instruments	PMA
518041-1	Sensor, Temperature T3	Unison Industries LLC	—	77	Instruments	PMA
519-28702-082	encoding altimeter	IDC	—	77	Instruments	OEM
519327-3	SENSOR	Unison Industries, Inc.	777	77	Instruments	OEM
519660-1	Harness, EGT	Unison Industries	—	77	Electromechanical	PMA
51A020	PROBE	—	767-300 A330-200+6	77	unknown	OEM
51A020 ZC1	transducer speed sensor y	ge engine services dist llc	—	77	Instruments	OEM
51J137	Thermocouple- Immersion	—	—	77	Avionics / Electronics	OEM
51J137	Thermocouple- Immersion	—	—	77	Instruments	OEM
51T401	Thermocouple	—	—	77	Avionics / Electronics	OEM
51T402	Thermocouple	—	—	77	Avionics / Electronics	OEM