JASC Code Table
- 1 11 Placards and Markings
- 2 22 Auto Flight
- 2.1 22-00 Auto Flight System
- 2.2 22-10 Autopilot System
- 2.3 22-11 Autopilot Computer
- 2.4 22-12 Altitude Controller
- 2.5 22-13 Flight Controller
- 2.6 22-14 Autopilot Trim Indicator
- 2.7 22-15 Autopilot Main Servo
- 2.8 22-16 Autopilot Trim Servo
- 2.9 22-20 Speed-Attitude Correction System
- 2.10 22-30 Auto Throttle System
- 2.11 22-50 Aerodynamic Load Alleviating
- 2.12 22-97 Auto Flight System Wiring
- 3 23 Communications
- 3.1 23-00 Communications System
- 3.2 23-10 HF Communications System
- 3.3 23-11 UHF Communications System
- 3.4 23-12 VHF Communications System
- 3.5 23-20 Data Transmission Auto Call
- 3.6 23-30 Entertainment System
- 3.7 23-40 Interphone/Passenger Announcement (PA) System
- 3.8 23-50 Audio Integrating System
- 3.9 23-60 Static Discharge System
- 3.10 23-70 Audio/Video Monitoring
- 3.11 23-97 Communications System Wiring
- 4 24 Electrical Power
- 4.1 24-00 Electrical Power System
- 4.2 24-10 Alternator-Generator Drive
- 4.3 24-20 AC Generation System
- 4.4 24-21 AC Generator-Alternator
- 4.5 24-22 AC Inverter
- 4.6 24-23 Phase Adapter
- 4.7 24-24 AC Regulator
- 4.8 24-25 AC Indicating System
- 4.9 24-30 DC Generating System
- 4.10 24-31 Battery Overheat Warning System
- 4.11 24-32 Battery/Charger System
- 4.12 24-33 DC Rectifier/Converter
- 4.13 24-34 DC Generator-Alternator
- 4.14 24-35 Starter-Generator
- 4.15 24-36 DC Regulator
- 4.16 24-37 DC Indicating System
- 4.17 24-40 External Power System
- 4.18 24-50 AC Power Distribution System
- 4.19 24-60 DC Power Distribution System
- 4.20 24-97 Electrical Power System Wiring
- 5 25 Equipment/Furnishings
- 5.1 25-00 Cabin Equipment/Furnishings
- 5.2 25-10 Flight Compartment Equipment
- 5.3 25-20 Passenger Compartment Equipment
- 5.4 25-30 Buffet/Galleys
- 5.5 25-40 Lavatories
- 5.6 25-50 Cargo Compartments
- 5.7 25-51 Agricultural Spray System
- 5.8 25-60 Emergency Equipment
- 5.9 25-61 Life Jacket
- 5.10 25-62 Emergency Locator Beacon
- 5.11 25-63 Parachute
- 5.12 25-64 Life Raft
- 5.13 25-65 Escape Slide
- 5.14 25-70 Accessory Compartment
- 5.15 25-71 Battery Box Structure
- 5.16 25-72 Electronic Shelf Section
- 5.17 25-97 Equipment/Furnishings Wiring
- 6 31 Instruments
- 7 34 Navigation
- 7.1 34-00 Navigation System
- 7.2 34-10 Flight Environment Data
- 7.3 34-11 Pitot/Static System
- 7.4 34-12 Outside Air Temperature Indicator/Sensor
- 7.5 34-13 Rate of Climb Indicator
- 7.6 34-14 Airspeed/Mach Indicator
- 7.7 34-15 High Speed Warning
- 7.8 34-16 Altimeter, Barometric/Encoder
- 7.9 34-17 Air Data Computer
- 7.10 34-18 Stall Warning System
- 7.11 34-20 Attitude and Direction Data System
- 7.12 34-21 Attitude Gyro and Indicating System
- 7.13 34-22 Directional Gyro and Indicating System
- 7.14 34-23 Magnetic Compass
- 7.15 34-24 Turn and Bank/Rate of Turn Indicator
- 7.16 34-25 Integrated Flight System
- 7.17 34-30 Landing and Taxi Aids
- 7.18 34-31 Localizer/VOR System
- 7.19 34-32 Glide Slope System
- 7.20 34-33 Microwave Landing System
- 7.21 34-34 Marker Beacon System
- 7.22 34-35 Heads Up Display System
- 7.23 34-36 Wind Shear Detection System
- 7.24 34-40 Independent Position Determining System
- 7.25 34-41 Inertial Guidance System
- 7.26 34-42 Weather Radar System
- 7.27 34-43 Doppler System
- 7.28 34-44 Ground Proximity System
- 7.29 34-45 Air Collision Avoidance System
- 7.30 34-46 Non Radar Weather System
- 7.31 34-50 Dependent Position Determining System
- 7.32 34-51 DME/TACAN System
- 7.33 34-52 ATC Transponder System
- 7.34 34-53 Long-Range Navigation (LORAN) System
- 7.35 34-54 Visual Omnirange (VOR) System
- 7.36 34-55 Automatic Direction Finder (ADF) System
- 7.37 34-56 Omega Navigation System
- 7.38 34-57 Global Positioning System
- 7.39 34-60 Flight Management Computing Hardware System
- 7.40 34-61 Flight Management Computing Software System
- 7.41 34-97 Navigation System Wiring
11 Placards and Markings
11-00 Placards and Markings
For reports on all placards, decals, and markings installed by the manufacturer including those required by government regulations. The report should include the system or component involved. The aircraft make and model is required. The location of the item is essential for a meaningful report. Such information should be extracted from the text and entered in the proper data fields (Example: Item = placard; location = entrance door; part condition = missing. Text= the "closed and locked" decal is missing from the main passenger entrance door).
22 Auto Flight
22-00 Auto Flight System
The units and components that furnish a means of automatically controlling flight of the aircraft. Includes those units and components controlling direction, heading, attitude, altitude, and speed. Use this code when there is insufficient information to file in a more specific JASC 2200 series code.
22-10 Autopilot System
For reports of miscellaneous parts associated with the autopilot system used for controlling attitude and direction. Typical parts are yaw damper, cable, switch, sensor, relay, etc. The major components such as computer, servo, and controller are to be filed in the specific JASC 2200 series code.
22-11 Autopilot Computer
For reports pertaining to the autopilot computer only. Typical parts are resistor, circuit board, capacitor, or power supply, etc.
22-12 Altitude Controller
The units transmitting output information signals to automatically maintain a predetermined altitude, rate of climb, or descent. Does not include the connecting system parts such as the sensor switch. The controller make and model should be included.
22-13 Flight Controller
The command unit of an autopilot system. It is manually operated to generate signals which cause the aircraft to climb, dive, or perform coordinated turns. The controller make and model should be included.
22-14 Autopilot Trim Indicator
The instrument and associated circuitry that indicates the trim position selected by the pilot.
22-15 Autopilot Main Servo
The unit mechanically connected to primary flight control actuating mechanisms, which is used to mechanically reposition control surfaces in accordance with electrical or pneumatic signals from a controller.
22-16 Autopilot Trim Servo
The units mechanically connected to flight control cables, etc., for making minor corrections in aircraft attitude or direction.
22-20 Speed-Attitude Correction System
The system which automatically maintains safe flight conditions by correcting for effects of speed and out-of-trim conditions by such means as automatic trim, mach trim, or speed stability and mach feel. This includes sensing, computing, actuating, indicating, internal monitoring, warning devices, etc.
22-30 Auto Throttle System
The system that automatically controls the position of the throttles to properly manage engine power during all phases of flight/attitude. This includes engaging, sensing, computing, amplifying, controlling, actuating and warning devices. Typical parts are amplifiers, computers, servos, limit switches, clutches, gearboxes, warning lights, etc.
22-50 Aerodynamic Load Alleviating
The system that automatically corrects and provides for gust loading/upset, aerodynamic augmentation, alleviation, suppression, ride control, etc. This includes sensing, computing, actuating, indicating, internal monitoring, warning devices, etc.
22-97 Auto Flight System Wiring
For reports indicating a problem with wiring specific to the Autoflight/Auto Pilot System.
23-00 Communications System
The units and components furnishing a means of communicating from one part of the aircraft to another and between the aircraft or ground stations, includes voice, data, continuous wave (C-W) communicating components, passenger announcement systems, intercom, inflight telephones, and tape reproducers-record player. Use this code when insufficient information is reported to file in a more specific JASC 2300 series code. Also for reports of units or parts common to more than one communication system.
23-10 HF Communications System
The system parts and circuitry including the receiver, transmitter, and antenna used exclusively in the high frequency (HF) communications.
23-11 UHF Communications System
The system parts and circuitry including the receiver, transmitter, and antenna used exclusively for ultra high frequency (UHF) communications.
23-12 VHF Communications System
The system parts and circuitry including the receiver, transmitter, and antenna used exclusively for very high frequency (VHF) communications.
23-20 Data Transmission Auto Call
The system components and parts which presents data derived from pulse coded transmissions. Includes "selective calling" (SELCAL), "aircraft communications addressing and reporting system" (ACARS), teleprinter, etc.
23-30 Entertainment System
For reports on passenger entertainment system or components such as amplifier, cassette recorder player, control panel, speaker, video equipment, etc.
23-40 Interphone/Passenger Announcement (PA) System
For reports on the interphone/passenger announcement (PA) system, including the amplifier used for communication by flight and ground personnel to communicate between areas on the aircraft.
23-50 Audio Integrating System
For reports of the system components and parts including the control panel and amplifier which controls output of communications and navigation receivers into flight crew headphones and speakers. Also includes output from microphones into communications transmitters. Typical parts are microphones, cockpit speakers, and headphones, etc.
23-60 Static Discharge System
The parts dissipating static electricity. Does not include bonding straps on engine or airframe used to assure paths for DC current, which are filed in JASC code 2430. Typical parts are wick, bonding strap, etc.
23-70 Audio/Video Monitoring
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.
23-97 Communications System Wiring
For reports indicating a problem with wiring specific to the Communications Systems.
24 Electrical Power
24-00 Electrical Power System
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.
24-10 Alternator-Generator Drive
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.
24-20 AC Generation System
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.
24-21 AC Generator-Alternator
The engine driven component that generates alternating current (AC) for aircraft with AC electrical systems. Does not include AC alternators on light piston-engine power aircraft with direct current (DC) electrical systems. Does not include single units used for both engine starting and electric power generating. Typical parts are bearing, shaft, housing, and integrated drive generator (IDG) which contains both AC and DC generators.
24-22 AC Inverter
The component which converts direct current to alternating current.
24-23 Phase Adapter
The component used to change the alternating current (AC) phase of output for specific using equipment.
24-24 AC Regulator
The component that regulates the AC voltage from the alternator-generator to maintain a set voltage output for the using systems (i.e., generator control unit).
24-25 AC Indicating System
The equipment indicating, voltage, current flow, and system faults in the AC power systems.
24-30 DC Generating System
The system parts and circuitry other than the generator/alternator and DC generation system regulator used to generate a direct current (DC); or from an alternator, the output of which is rectified to DC. Typical parts are relay, switch, connector, terminal, sensor, reverse current relay, etc. Such systems are more prevalent on light single and twin-engine aircraft.
24-31 Battery Overheat Warning System
The system parts that sense and warn/indicate of a battery overtemperature condition. Typical parts are sensor, lamp, gauge, etc.
24-32 Battery/Charger System
The component providing a source of DC voltage and current flow independent of rotating generators and alternators. Typical parts are battery charger, cell, case, post, etc.
24-33 DC Rectifier/Converter
The component which converts AC current for the using systems.
24-34 DC Generator-Alternator
The engine driven component generating a direct current (DC) or a rectified alternating current for aircraft with DC electrical systems. For reports of alternators on light aircraft with piston engines. Does not include mounting brackets, drive belts and pulleys external to the unit. Typical parts are bearing, housing, coupling, fan, capacitor, drive, brush, seal, clutch, armature and bell, shaft, field winding, case bolt, ground stud, etc.
The single component used for both engine starting and direct current generation on turbine engines. Typical parts are bearing, shaft, brush, fan, retainer ring, armature, brush, housing, end bell, terminal, etc.
24-36 DC Regulator
The component that regulates direct current voltage from a generator or alternator.
24-37 DC Indicating System
The equipment indicating voltage, current flow, and system faults in the DC power systems.
24-40 External Power System
The electrical system within the aircraft which is used to connect external power to the aircraft's electrical system. Does not include the external power supply units. Typical parts are receptacle, switch, indicator lamp, etc.
24-50 AC Power Distribution System
The electrical system providing for connection of AC power to using systems. Does not include the using system. Typical parts are main and secondary system buss, circuit breaker, limiter, jumper, load meter switch, etc.
24-60 DC Power Distribution System
The electrical system which provides for connection of DC power to using systems. Does not include using system. Typical parts are main and secondary system buss, circuit breaker, buss tie breaker, limiter, jumper, load motor switch, etc.
24-97 Electrical Power System Wiring
For reports indicating a problem with wiring specific to the Electrical Power Systems not reportable in the Power Distribution Systems.
25-00 Cabin Equipment/Furnishings
The removable items of equipment and furnishings mounted or contained in the flight, passenger, cargo, accessory compartments, and areas described in other JASC 2500 series codes shown below. Does not include structure or equipment assigned specifically to other JASC codes.
25-10 Flight Compartment Equipment
The removable equipment and furnishings within the cockpit or crew station of a general nature and not specifically covered in other JASC 2500 series codes. Typical parts are seats, shoulder harnesses, take-up harness reels, seat belts, sun visors, panels, map case, attach brackets and hardware, etc.
25-20 Passenger Compartment Equipment
The removable equipment and furnishings within the cabin of a general nature and not specifically covered in other JASC codes. Typical parts are seats, seat belts, hat rack, coat closet, panel, including passenger comfort items such as personal blankets, pillows, etc.
For reports pertaining to any of the galley equipment. Typical parts are hot plate, coffeepot, food carts, ovens, tray, pad, relay, switch, connector, dispenser, etc.
The units and associated systems and parts located in lavatories. Does not include wash basins and other waste disposal items in JASC code 3830. Typical parts are trash containers, dispensers, etc.
25-50 Cargo Compartments
The compartments for the storage of baggage and cargo including external mounted pods. Does not include the exterior door, hinges and latches which are filed in JASC code 5230. Typical parts are tie downs, restraint nets, and equipment for loading and unloading cargo (includes external load handling equipment).
25-51 Agricultural Spray System
For reports of aerial application equipment such as hopper, tank, spray nozzle, boom, pump, bracket, valve.
25-60 Emergency Equipment
The components, parts, and systems carried for emergency use other than those specifically referenced in other JASC 2500 series codes. Does not include fire extinguishes, oxygen equipment, and flashlight. Flashlights are filed under JASC code 3350. Escape slide girt bars are filed under this code.
25-61 Life Jacket
For reports of defective parts of life jackets used for flotation of individual persons. Include the life jacket make and model in the report if available.
25-62 Emergency Locator Beacon
The components transmitting an electronic signal on an emergency frequency to assist in locating a crashed aircraft. Typical parts are impact switch, antenna, battery pack, etc.
For the reporting of defective parts of parachutes used for reducing landing roll distance as well as for personnel jumping. The parachute make and model is beneficial if available.
25-64 Life Raft
The inflatable component which provides emergency flotation for two or more persons in event of ditching in water. Typical parts are bottle, valve, oral pump, etc.
25-65 Escape Slide
The inflatable component which enables rapid evacuation from an aircraft cabin to ground level during emergencies on the ground. The slide should be identified by make and model if possible and should include location. Typical parts are valve, bottle, inflation handle, mount brackets, door, latch, etc.
25-70 Accessory Compartment
The compartments for the housing of various components or accessories with insufficient information to file in a more specific JASC 2500 series code.
25-71 Battery Box Structure
The structure supporting, vents, and provides overboard draining for aircraft batteries. Typical parts are vent cap, drain tube, insulator, cover, etc.
25-72 Electronic Shelf Section
The shelves and attaching parts supporting the electronic equipment within the fuselage. Does not include the equipment used for equipment cooling such as fans, and blower motors.
25-97 Equipment/Furnishings Wiring
For reports indicating a problem with wiring specific to the Equipment/Furnishing Systems.
31-00 Indicating/Recording System
The pictorial coverage of all instrument panels and controls. Procedural coverage of those systems, which give visual or aural warning of conditions in systems which record, store, or compute data from unrelated systems. Includes the system or units which integrate indicating instruments into a central display system not related to any specific system.
31-10 Instrument Panel
The removable cockpit instrument and control panels. Includes the mounting hardware and shock absorbing devices.
31-20 Independent Instruments
The units which measures time, logs elapsed time of operation, or measures acceleration/deceleration forces. Typical parts are hour meter, pressure switch, line, etc.
31-30 Data Recorders (Flight/Maintenance)
The unit which continuously records critical flight, aircraft and powerplant system data, such as attitude, air speed, altitude, engine power, etc., to be used in the event of a crash. Includes the system and parts that provide a source of power and inputs, from various sources critical to flight, to flight data recorder. Typical parts are spool rod, magazine, etc.
31-40 Central Computers
The systems and components used for computing data from a number of different sources without a preponderance of functions in any one system, for call up on a display. Includes integrated instrument systems such as engine, airplane power and central warning indicators when combined into a central display. Typical parts are "digital core avionic system" (DCAS), "engine indications and crew alerting system" (EICAS), stored checklist, emergency procedures, company regulations, etc.
31-50 Central Warning
The panels and associated circuitry which warn of potential problems in two or more independent or related systems. Warnings can be either audible or visual. Typical parts are annunciator panel, relay, lamp, PC board, diode, throttle microswitch, etc.
31-60 Central Display
The systems and components which give visual display of conditions in unrelated systems.
31-70 Automatic Data
The systems and components used for collating and computing data from unrelated systems and transmitting the same automatically. Includes "aircraft to satellite data relay" (ASDAR) system and components.
31-97 Instrument System Wiring
For reports indicating a problem with wiring specific to the Instrument Systems.
The units and components which provide aircraft navigational information. For reports which are of a general nature relating to the navigation systems. Also, for reports on equipment utilized in the flight inspection of airways systems (excluding avionics equipment normally used for flight operations of the aircraft). Use this code for reports with insufficient information to file in a more specific JASC 3400 series code. Typical flight inspection equipment would be computers, recorders, nav comms, guidance equipment, etc.
34-10 Flight Environment Data
The system which senses environmental conditions and uses the data to influence navigation.
34-11 Pitot/Static System
The system which provides a source of ram or static air for distribution to using instruments and pressure differential units such as automatic landing gear extender, altimeter, airspeed and rate of climb. Does not include the using units, instruments, the anti-ice heating elements, or the associated circuitry and switches which are filed in JASC code 3030. Typical parts are air pick up heads, lines, fittings, drain valves, static port, selector valve, etc.
34-12 Outside Air Temperature Indicator/Sensor
The unit mounted in the engine induction air intake to sense and transmit temperature to the cockpit indicator. Also for the sensors and instruments which measure and indicate the temperature of ambient air outside the aircraft. Includes associated circuitry and related parts. Typical parts are sensor, indicator, case, etc.
34-13 Rate of Climb Indicator
The instrument which senses and indicates the rate of climb or descent of an aircraft. Does not include the associated static system. Includes the instantaneous vertical speed indicator (IVSI).
34-14 Airspeed/Mach Indicator
The instrument which measures and indicates speed of the aircraft. Does not include the Doppler indicator which are filed in JASC code 3443.
34-15 High Speed Warning
The system components and parts, including the computer which sense, transmit and provide warning when operating air speed limits are exceeded. Typical parts are transducer, stall warning detector, switch, vane, horn, lamp, warning unit computer, module, etc.
34-16 Altimeter, Barometric/Encoder
Altimeters and barometric encoders used to measure and indicate altitude. Also includes the unit which senses and alerts to a change in a preselected altitude. Does not include the Ground Proximity Systems and radio/radar altimeters which are filed in JASC codes 3444. Typical parts are dial, case, pointer, spring, etc.
34-17 Air Data Computer
The computer and its integral parts which receives data from various environmental sensing systems, computes this data, and makes it available to the various navigation systems. Does not include external hardware such as cables, mounting racks, remote switches, etc., which are filed in JASC code 3410.
34-18 Stall Warning System
The system components and parts, including the computer which sense, transmit and provide aural, visual and stick shaker warning of an aircraft in an impending flight stall condition. Typical parts are transducer, stall warning detector, switch, vane, horn, lamp, stick shaker, heater element, warning unit computer, module, etc.
34-20 Attitude and Direction Data System
The system components and parts which use magnetic, gyroscopic, and inertia forces to indicate an aircraft attitude and direction. Use this code for reports with insufficient information to file in JASC codes 3421 through 3425. Includes such items as the inertial reference system (IRS), etc.
34-21 Attitude Gyro and Indicating System
The gyroscopic unit which supplies attitude information to the necessary systems; for instance, vertical reference outputs for use as roll and pitch data to the autopilot computer. Includes the instruments operating by the gyroscopic principle, driven by air flow or an electric motor. Typical parts are vertical gyro and the gyro horizon.
34-22 Directional Gyro and Indicating System
The unit operating by gyroscopic principle and driven by airflow or an electric motor, which provides heading (direction) references relative to a preset heading in degrees of the compass. Also for the flux unit detector which senses the earth's magnetic field and uses this data to correct for gyro drift. Typical parts are gyro, rotor, bearing, etc.
34-23 Magnetic Compass
The instrument which indicates the magnetic heading of an aircraft by self contained magnetized needles. Typical parts are compensator, adjusting screw, gasket, float, case, etc.
34-24 Turn and Bank/Rate of Turn Indicator
The instrument actuated by gyroscopic forces and driven by air flow or electric motor to indicate both rate of turn and angle of bank.
34-25 Integrated Flight System
The system which computes, interrogates, and continuously displays basic attitude, position, and steering information in order to maintain a particular course, heading, or attitude. Does not include flight management system components, which should be assigned to JASC code 3460. Typical parts are integrated flight annunciator, integrated flight comparator, integrated flight computer/amplifier, integrated flight control and integrated flight indicators (i.e., horizontal situation indicator (HSI), attitude and direction indicator (ADI), attitude direction unit (ADU), heading and direction indicator (HDI), radio direction indicator (RDI), course direction indicator (CDI), flight director indicator (FDI), pictorial navigation indicator, flight command indicator, steering computer utilized in the integrated flight instrument systems, and other components such as cables, connectors, etc.
34-30 Landing and Taxi Aids
The system providing guidance during approach, landing and taxiing. Includes such items as, ILS, paravisual director, ground guidance systems, markers, etc.
34-31 Localizer/VOR System
The electronic portion of an instrument landing system (ILS) that indicates the centerline of the runway to the pilot. For reports on localizer/very high frequency omni range (VOR) systems. Typical parts are receiver, antenna, indicator, circuit breaker, switch, antenna coax, etc.
34-32 Glide Slope System
The system which provides an instrument needle reference from an electronic signal radiated from a ground transmitter to enable the pilot to fly the proper glide path for landing under instrument meteorological conditions. Typical parts are circuit breaker, switch, receiver, antenna, indicator, etc.
34-33 Microwave Landing System
The instrumental landing system operating in the microwave spectrum which provides lateral and vertical guidance to aircraft having compatible avionics equipment. Typical parts are receiver, antenna, control panel, etc.
34-34 Marker Beacon System
The system which provides an aural and visual indication of passage over specified points on the glide path for landing under instrument meteorological conditions. NOTE: In instances where the control panel is an integral portion of the audio control panel, it would be filed in JASC code 2350. Typical parts are marker beacon antenna, receivers, visual/aural indication units, marker light, control panel, etc.
34-35 Heads Up Display System
The flight instrument system that allows the pilot of an aircraft to watch the flight instruments while looking ahead of the aircraft. Includes the display screen which allows information to be visually presented to the pilot while looking through the windscreen or at the control panel.
34-36 Wind Shear Detection System
The flight instrument system that allows the pilot to detect strong horizontal or vertical wind shift that acts at right angles to the direction the wind is blowing. Includes the outboard sensors, indicators, and the warning system which notifies the pilot of the appropriate corrective action maneuver to take.
34-40 Independent Position Determining System
The system which provides information to determine position and is primarily independent of ground installations. Use this code for reports of a general nature or for reports containing insufficient information to file in a more specific code identified in JASC codes 3441 through 3446. Typical parts are star tracker, sextants/octants, etc.
34-41 Inertial Guidance System
The navigation system which relies upon gyro platforms and accelerometers for its operation. Includes the control panel for the inertial navigation system; the instruments which receives their signal from the Inertial Navigation Unit (INU); and the unit containing the inertial platform and digital computer portion of the system. Use this JASC code for hardware components which do not have specific JASC codes assigned to them or when a system malfunction or failure occurs but the exact cause is not known. Typical parts are mode selector unit (MSU), control display unit (CDU), remote display unit (RDU), etc.
34-42 Weather Radar System
The system components and parts which transmits and receives a signal independent of ground facilities to determine the relative position of adverse weather cells. Typical parts are transceiver, antenna, control panel for the weather avoidance radar system, accessory synchronizers, servo amplifier, scope, etc.
34-43 Doppler System
The airborne radar system which utilizes the Doppler effect to measure and display ground speed, drift angle, cross track, etc.
34-44 Ground Proximity System
The system which detects and alerts flight crew to potential terrain hazards. Includes the antenna which transmits and receives an electronic signal for the radio altimeter equipment used for terrain-to-aircraft distance. Also includes the component which interprets a radio signal reflected back to a receiver to determine distance from the nearest terrain; and the component which process the warning computer input signals from various sources in order to determine if and when the crew should be alerted of a terrain hazard.
34-45 Air Collision Avoidance System
The system which provides information to determine aircraft position and is primarily independent of ground installations (i.e., traffic alert and collision avoidance system - TCAS). Use this code only if the specific system creating the problem cannot be established. Typical parts are collision avoidance monitoring units, etc.
34-46 Non Radar Weather System
The non radar weather system and components which sense the electrostatic charges accumulated around a storm cell in order to "map out" that cell on an indicator.
34-50 Dependent Position Determining System
The system which provides information to determine position and is mainly dependent on ground installations. Use this code for reports of a general nature or for those with insufficient information to file in a more specific JASC code identified in JASC codes 3451 through 3457.
34-51 DME/TACAN System
The systems which measures time-to-station, ground speed, and distance to a known transmitter location by transmitting and receiving electronic pulse signals (i.e., distance measuring equipment - DME; ultra high frequency tactical air navigational aid - TACAN). Typical parts are antenna, control unit, transceiver, coaxial cables, etc.
34-52 ATC Transponder System
The air traffic control (ATC) system which receives coded signals from a ground station and transmits a coded reply for altitude reporting and identification purposes. Typical parts are transponder, antenna, control unit, transceiver, coaxial connecting cables, etc.
The radio navigation system and associated components and parts which provides for long range navigation (LORAN) enroute when operating on signals from ground based master and slave transmitting stations. Typical parts are antenna, coupler, CPU, receiver, indicator, etc.
34-54 Visual Omnirange (VOR) System
The radio navigation system in the very high frequency (VHF) band used for determining position relative to a ground transmitter and permits selection of an infinite number of magnetic courses for navigation to a transmitter (i.e., visual omnirange - VOR system). Typical parts are receiver, antenna, control panel, etc.
34-55 Automatic Direction Finder (ADF) System
The low frequency band system which receives a signal from a non-directional radio beacon to determine relative position from the beacon location (i.e., automatic direction finder - ADF system). Typical parts are antenna, control unit, receiver, coaxial cables, etc.
The low frequency navigation system which provides for system geographical location of the aircraft on a 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.
34-57 Global Positioning System
The systems which are mainly dependent upon signals from ground transmitters or orbital satellites for their operations; systems such as VOR, ADF, DME, etc. Use this JASC code when there is insufficient information to assign one of the specific using system codes. Typical parts are antenna, control unit or receiver, coaxial connecting cable, remote switches, connectors, etc.
34-60 Flight Management Computing Hardware System
The hardware systems which combines navigational data to compute or manage the aircraft's geographical position or theoretical flight path. Typical parts are course computers, flight management computers, performance data computers, and associated control display units, warning annunciators, etc.
34-61 Flight Management Computing Software System
The software system which combines navigational data to compute or manage the aircraft's geographical position or theoretical flight path.
For reports indicating a problem with wiring specific to the Navigation Systems.