| ATA | Description |
|---|---|
| 77 - 7721 Cylinder Head Temperature (CHT) Indicating System |
Engine Indicating The instruments which indicates temperature measured at reciprocating engine cylinder heads. Typicalparts are indicator, case, dial, needle, thermocouple lead, sensor, and connector, etc. |
| 34 - 3456 Omega Navigation System |
Navigation The low frequency navigation system which provides for system geographical location of the aircraft ona worldwide basis when operating on signals from ground-based OMEGA and VHF transmitting stations.Typical parts are antenna, control unit or receiver, coaxial connecting cable, remote switches,connectors, etc. |
| 77 - 7722 Engine EGT/TIT Indicating System |
Engine Indicating For reports of exhaust gas temperature (EGT) or turbine inlet temperature (TIT) temperature sensingand indicating. Includes the EGT indicators for both reciprocating and turbine engines; and the TIT forturbine engines. Typical parts are wiring, turbine outlet temperature (TOT) indicator, EGT indicator,probe, harness, terminal, connector, indicator, sensor, transducer, transmitter, etc. |
| 34 - 3457 Global Positioning System |
Navigation The systems which are mainly dependent upon signals from ground transmitters or orbital satellites fortheir operations; systems such as VOR, ADF, DME, etc. Use this JASC code when there is insufficientinformation to assign one of the specific using system codes. Typical parts are antenna, control unit orreceiver, coaxial connecting cable, remote switches, connectors, etc. |
| 77 - 7730 Engine Ignition Analyzer System |
Engine Indicating For general reports of reciprocating engine ignition analyzer system problems. Typical parts are theamplifier, wiring harness, and sensor, etc. |
| 34 - 3460 Flight Management Computing Hardware System |
Navigation The hardware systems which combines navigational data to compute or manage the aircraft'sgeographical position or theoretical flight path. Typical parts are course computers, flight managementcomputers, performance data computers, and associated control display units, warning annunciators,etc. |
| 77 - 7731 Engine Ignition Analyzer |
Engine Indicating The unit which interprets and indicates by oscilloscope the condition of ignition systems on reciprocatingengines. |
| 34 - 3461 Flight Management Computing Software System |
Navigation The software system which combines navigational data to compute or manage the aircraft'sgeographical position or theoretical flight path. |
| 77 - 7732 Engine Vibration Analyzer |
Engine Indicating For general reports of the engine vibration analyzer system indicating to the flight crew unusual enginevibration conditions. Typical parts are connector, harness, indicator, monitor, sensor, amplifier, etc. |
| 34 - 3497 Navigation System Wiring |
Navigation For reports indicating a problem with wiring specific to the Navigation Systems. |