ATA 77 — Engine Indicating

7,439 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
365A73-5351-02	Replacement Ng Indicators	Airbus Helicopters, Inc.	—	77	Instruments	OEM
365A95-7541-00	torquemeter complement	airbus helicopters inc american eurocopter	AS365 Dauphin	77	Instruments	OEM
366A54-1082-01	P2 Pickoff Base	Soloy LLC	—	77	Avionics	PMA
366A54-1082-20AEC	P2 Pick Off Base	American Eurocopter LLC	—	77	Instruments	PMA
369145267	GAUGE	—	MD 500	77	unknown
369A4514-5	Engine Power Out Warning Control Unit	—	—	77	engine indicating	OEM
369A45165	INDICATOR	—	MD 500	77	unknown
369A45167	TACHOMETER	—	MD 500	77	unknown
369A4521	INDICATOR	—	MD 500	77	unknown
369A45217	INDICATOR	—	MD 500	77	Instruments
369D24518	TACHOMETER	—	MD 500	77	unknown
369D24518-3	N2/NR Tachometer Indicator	—	—	77	—	OEM
369D24518-3	N2/NR Tachometer Indicator	—	—	77	—	OEM
369D24518-5	N2/NR Tachometer Indicator	—	MD 500	77	—	OEM
369D24518-5	N2/NR Tachometer Indicator	—	MD 500	77	—	OEM
369D29630921	GAUGE	—	MD 500	77	unknown
369H412651	HARNESS	—	MD 500	77	unknown	OEM
369H4233	TACH GENERATOR	—	MD 500	77	Electromechanical	PMA
369H45167	N1 TACHOMETER	—	MD 500	77	unknown
369H45267	TORQUE GAUGE	—	MD 500	77	Instruments
369H4551	TACH GENERATOR	—	MD 500	77	Electromechanical	PMA
3716072501	RECTIFIER	—	DC-8	77	unknown
37801-002	tach	IDC	—	77	Instruments	OEM
37802-002	tgt indicator	IDC	—	77	Instruments	OEM
37E501519P105	Harness T/C	—	—	77	—	OEM
37E501519P105	Harness T/C	—	—	77	—	OEM
3809004-1	INDICATO	Honeywell	747	77	—	OEM
3809005-1	INDICATO	Honeywell	747	77	—	OEM
3809007-1	Bendix RPM Indicator	Honeywell	747-100 747	77	Instruments	PMA
3809008-1	Bendix RPM Indicator	Honeywell	747-100 747	77	Instruments	PMA
3876003-7	thermocouple	sikorsky aircraft corporation	—	77	Instruments	OEM
3876123-3	Transducer Motional Pickup	—	Bell 212 Bell 214	77	Instruments	OEM
3876123-3	Transducer Motional Pickup	—	Bell 212 Bell 214	77	engine indicating	OEM
3876197-1	Transducer, Motional Pick-up	—	C340 Bell 212	77	engine indicating	OEM
3876197-1	Transducer, Motional Pick-up	—	C340 Bell 212	77	Instruments	OEM
389A4517	TACH GENERATOR	—	MD 500	77	Electromechanical	PMA
3901398-02	Transducer, Pressure Differential	—	A380	77	—	OEM
395-5SB-12V	Westach Old Style Sender 12Volt	Westach	—	77	Instruments	PMA
39957213	INDICATOR	—	AS350 Ecureuil H125	77	Instruments	OEM
3AQ1-14	Westach Quad Combo Gauge 3Aq1-14	Westach	—	77	Instruments	PMA
3AT8A-2/6	Westach 3-1/8 Square Tachometer 0-8000 RPM 2 Or 6 Imp/Rev Non-TSO	Westach	—	77	Instruments	PMA
3G6340V01051	Thermocouple Temp Sensor	—	AW139	77	—	OEM
3G6340V01051	Thermocouple Temp Sensor	—	AW139	77	—	OEM
3G7610V00331	RELAY	AAR	AW139 AgustaWestland AW139	77	Electromechanical	OEM
4-301-033-01	thermocouple assy	airbus helicopters inc american eurocopter	—	77	Instruments	OEM
4-301-061-03	speed pickup	airbus helicopters inc american eurocopter	—	77	Instruments	OEM
4-301-327-01	thermocouple assy	airbus helicopters inc american eurocopter	—	77	Avionics / Electronics	OEM
4-301-501-01	thermocouple lead	airbus helicopters inc american eurocopter	—	77	Instruments	OEM
40002-0000-05	Sensor-Torque Monitor	Rosemount Aerospace	—	77	Powerplant	PMA
40007-004	EPR Indicator	Spirent Systems Wichita Inc	C180 C185 Skywagon	77	Powerplant	PMA