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
T1EU70A	PRESSURE SENSOR	—	—	77	unknown	OEM
T29604	PROBE	—	737-900	77	unknown	OEM
T67683305	INDICATOR	—	—	77	Instruments
TACH2	Tach2 Signal Converter	SureFly Partners Ltd	C172 Skyhawk C182 Skylane+20	77	Instruments	PMA
Tachometer Indicator	729552	Hamilton Sundstrand	—	77	Instruments	PMA
TAS2144-J	Engine Thermo-couple	Tanis Aircraft Services	—	77	Instruments	PMA
TAS2144-K	Engine Thermo-couple	Tanis Aircraft Services	—	77	Instruments	PMA
TAY65015	POWERPLANT	—	—	77	unknown	OEM
TC174-01	Lead Assembly, Electrical L.H.	—	—	77	Instruments	OEM
TC174-01	Lead Assembly, Electrical L.H.	—	737-400	77	Instruments	OEM
TC174-01ACS	Lead Assembly, Electrical L.H.	AVIATION COMPONENT SERVICES, INC	—	77	Avionics / Electronics	PMA
TC174-02	Lead Assembly, Electrical L.H.	—	—	77	Instruments	OEM
TC174-02	Lead Assembly, Electrical L.H.	—	—	77	Instruments	OEM
TC17400	EGT HARNESS	—	737-300 737	77	Instruments
TC17401	HARNESS	—	737	77	Electromechanical	OEM
TC18100K	Harness T5 Thermocouple	Semco Instruments Inc	—	77	Instruments	PMA
TC19100	Thermocouple Immersion	Semco Instruments Inc	—	77	Instruments	PMA
TC19500	T5 Thermocouple Integral Harness	Semco Instruments Inc	—	77	Instruments	PMA
TC28603	PROBE	—	737-800	77	unknown	OEM
TC29503	PROBE	—	737-800	77	unknown	OEM
TC296	PROBE	—	737-700 737	77	unknown	OEM
TC296-06	CFM56-7BEGT Harness	—	—	77	Instruments	OEM
TC296-06	CFM56-7BEGT Harness	—	—	77	Instruments	OEM
TC29602	THERMOCOUPLE	GE	737-700 737-800+3	77	Instruments	OEM
TC29603	THERMOCOUPLE	CFMINT	737-700 737-800+2	77	Instruments	OEM
TC29603ACS	PROBE	—	737-800	77	unknown	OEM
TC29604	THERMOCOUPLE	—	737-400 737-700+2	77	unknown	OEM
TC2960X	PROBE	—	737-800	77	unknown	OEM
TC296XX	PROBE	—	737-800	77	unknown	OEM
TC43301	PROBE	—	717-200	77	unknown	OEM
TC5400-4	Thermocouple, Immersion T-5	Semco Instruments Inc	—	77	Instruments	PMA
TDH80022002	RELAY	—	Dash 8-400 Dash 8	77	Electromechanical	OEM
TE4099802	THERMOCOUPLE	—	C172S	77	Instruments	PMA
Teledyne Continental Part No. 641538	Gasket, tach drive	—	—	77	Instruments	OEM
Teledyne R113317502C34A	Marker-"L Eng Vib High"	—	DC-9 MD-80+1	77	Instruments	OEM
Teledyne R113317502C41A	Marker-"R Eng Vib High"	—	DC-9 MD-80+1	77	Instruments	OEM
Texas Skyways	Electronic Digital Engine Tachometer Model P-1000	—	C180	77	Avionics / Electronics	OEM
Texas Skyways	Electronic Digital Engine Tachometer Model P-1000	—	C180	77	Avionics / Electronics	OEM
Textron Lycoming 4-301-099-04	Compensator Temperature	—	—	77	Instruments	OEM
Textron Lycoming LW15032	Tach. Shaft	—	—	77	Instruments	OEM
TG010005006	TACH GENERATOR	—	—	77	Electromechanical	PMA
The General Electric Company P/N 2635M33P03	Sensor, Compressor Discharge – T3	—	—	77	Instruments	OEM
The General Electric Company P/N 2635M35P02	Sensor Probe, Exhaust Gas Temperature T49	—	—	77	Instruments	OEM
The General Electric Company P/N 2635M39P02	Sensor, T12	—	—	77	Instruments	OEM
The General Electric Company P/N 2635M40P03	Sensor, T25	—	—	77	Instruments	OEM
Thermocouple Box and Cable 1B0099	Harness & Box Assembly with Outboard Take-off (2037)	—	—	77	Instruments	OEM
TLC16500	LEAD	—	737-300 737	77	unknown
TM42040	GAUGE	—	—	77	Instruments	OEM
TM42739	INDICATOR	—	—	77	Instruments
TM42740	INDICATOR	—	—	77	Instruments