Fuselage

For reports of the structure including exterior skin and truss framework of tail booms on rotorcraft.Includes attach fittings, etc., for tail boom and stabilizer surfaces. Typical parts are bulkhead, bracket,frame, frame tube, plate, etc.

Communications

For reports on installations that record or monitor crew or passenger conversation or movement for security or safety purposes. Includes voice recorder, television, monitor, etc.

Fuselage

For general reports of fuselage structure defects which affect two or more related parts or are reportedwith insufficient information to file in a more specific JASC 5300 series code. Use of this code should beavoided if possible.

Communications

For reports indicating a problem with wiring specific to the Communications Systems.

Fuselage

For reports of the main fuselage frames. The associated attach fittings are covered in JASC code 5320.

Electrical Power

The electrical units and components that generate, control, and supply AC/DC electrical power for other systems through the secondary busses. For reports on electric power generating system parts and circuitry other than major components reported with insufficient information to file in a specific JASC 2400 series code. Typical parts are circuit breaker, relay, connector, resistor, wire bundles, switches, etc.

Fuselage

For reports of the main fuselage bulkheads and the associated attach fittings.

Electrical Power

For reports on alternator and generator drives mounted on reciprocating "opposed" type engines. Does not include alternator cases. Typical parts are bracket, pulley, belt, link, idler pulley, bolt, drive shaft and gears that stay with the alternator. Also for reports on constant speed drive (CSD) unit mounted on turbine engines to drive alternating current (AC) producing alternators at a predetermined and constant RPM. Typical parts are shaft seal, shaft, etc.

Fuselage

For reports of the main fuselage longerons/stringers.

Electrical Power

For reports of system parts other than the alternator, regulator, AC inverter or phase adapter generating an alternating current for aircraft which incorporate an alternating current electrical system. Used primarily with large, turbine engine powered aircraft. Does not include the using systems.