| Part Number | Part Description |
|---|
| 5120-6 | COURSE DEVIATION IND |
| 5120T8TT20 | VALVE ASSY |
| 5122-1100-2 | YAW DAMPER COMPUTER |
| 512-81 | PITOT AMP GAUGE |
| 51300-1 | RUDDER PCU ASSY |
| 513-18352-008 | STATIC AIR TEMP.IND. |
 | 513-24660-102 | SAT/TAS INDICATOR |
| 513-24660-501 | TAS INDICATOR |
| 513-24660-502 | INDICATOR |
| 514127 | HMEC WINDSCREEN |
| 5146-00-3 | PRESSURE REGULATOR |
 | 514A4 | RADIO CONTROL UNIT |
 | 51-5005 | DC AMMETER |
| 51509-006BR | GENERATOR CONTROL UNIT GCU |
 | 51509-006C | CONTROL UNIT GCU |
| 51509-006F | GENERATOR CONTROL UNIT GCU |
 | 51525-001F | GENERATOR CONTROL UNIT GCU |
| 51525-014A | GENERATOR CONTROL UNIT (GCU), 28VDC |
| 515297 | HMEC WINDSCREEN |
| 51530-001A | GENERATOR CONTROL |
| 51530-007B | GENERATOR CONTROL |
 | 51538-001A | GENERATOR CONTROL, DC |
| 51538-001B | GENERATOR CONTROL UNIT |
| 51538-001C | GENERATOR CONTROL UNIT |
| 51538-001D | GENERATOR CONTROL UNIT |
| 51538-002A | GENERATOR CONTROL |
| 51539-002 | GENERATOR CONTROL UNIT GCU |
 | 51539-006D | GENERATOR CONTROL GCU |
| 51539-006F | GENERATOR CONTROL UNIT GCU |
 | 51539-006H | CONTROL UNIT GCU |
 | 51539-006J | CONTROL UNIT GCU |
 | 51539-009H | CONTROL UNIT GCU |
| 51539-009J | GENERATOR CONTROL UNIT |
 | 51539-013C | CONTROL UNIT GCU |
 | 51539-019E | CONTROL UNIT GCU |
| 51586-002 | CONTROL UNIT GCU |
| 515CUF2 | ALTITUDE SELECTOR |
| 515CUF3 | SELECTOR |
 | 51600-2 | APU FIRE EXTINGUISHER WITH SQUIB |
| 51600-9 | VALVE, SPOILER SELECTOR |
| 516456-2 | MOTOR, AC |
| 51651-101 | CONTROL UNIT |
 | 51653-154 | FIRE WIRE CONTROL BOX |
| 516CUF1 | NAV. SELECTOR |
| 518-16007-313 | ALTIMETER ENCODING |
| 518-16007-46 | ALTIMETER |
| 518-16007-61 | ALTIMETER |
 | 5182-1 | AMPLIFIER |
| 5185-00-1 | VALVE FLOW CONTROL, BI LEVEL |
 | 5185-00-3 | VALVE FLOW CONTROL, BI LEVEL |
 | 5188-00-1 | SHUT OFF VALVE |
 | 5188-00-7 | ANTI-ICE VALVE |
| 5189-00-9 | CHECK VALVE |
| 5193-00-5 | VALVE, AIR, COCKPIT |
| 519892-6-1 | STARTER MOTOR |
 | 519892-6-2 | CHALLENGER 300-604 STARTER MOTOR |
 | 519892-6-3 | CHALLENGER 300 STARTER GENERATOR |
| 51B2214 | CABIN TEMP INDICATOR |
| 51B2214-1 | CABIN TEMP INDICATOR |
 | 51B2232-1 | DUCT TEMP INDICATOR |
| 51B2411 | DC VOLTMETER |
 | 51B2411-1 | DC VOLTMETER |
 | 51B2411-2 | DC VOLTMETER |
| 51B2421 | A.C.VOLTMETER |
| 51B2421-1 | A.C.VOLTMETER |
 | 51B2421-2 | A.C.VOLTMETER |
| 51B2620 | FREQUENCY METER |
 | 51B2620-1 | FREQUENCY METER |
 | 51B2620-2 | FREQUENCY METER |
| 51B5518 | DC AMMETER |
 | 51B5518-1 | DC AMMETER |
| 51B5520 | DC AMMETER |
 | 51B5520-1 | DC AMMETER |
| 51E080-935-12 | BREAKOUT BOX |
 | 51RV1 | VOR ILS NAV RECEIVER |
 | 51RV2B | VOR ILS NAV RECEIVER |
| 51RV5 | NAV RECEIVER |
| 51Y4 | ADF RECEIVER |
 | 51Y7 | ADF RECEIVER |
| 51Z4 | MARKER BEACON RECEIVER |
| 5-2 | ANTENNA |
| 5200-00-1 | CONTROLLER PRESSURISATION |
| 5200-00-3 | CONTROLLER |
| 5200-00-5 | CONTROLLER |
| 5-2000-07 | DIRECTISYN |
 | 5201-00-7 | OUTFLOW VALVE |
| 5201-00-9 | OUTFLOW VALVE |
| 520-3150-002 | INDICATOR HSI |
| 520-3150-004 | INDICATOR HORIZONTAL |
| 520-3151-003 | INDICATOR STANDBY HSI |
| 520-3210-002 | R.M.I. |
| 520-3337-129 | R.M.I. |
| 520-8030-001 | VALVE |
| 520811 | ELECTRIC MOTOR |
 | 520814 | HYDRAULIC POWER PACK |
| 520850 | COURSE INDICATOR |
| 521-29007-005 | ENCODING ALTIMETER |
| 521-29007-006 | ENCODING ALTIMETER |
| 521-29007-008 | ENCODING ALTIMETER |
 | 521-29007-017 | ENCODING ALTIMETER |
| 521-39007-096 | ENCODING ALTIMETER |
| 521942 | INDICATOR, ITT |
| 522-0225-004 | FLUX DETECTOR |
 | 522-0236-003 | SLAVE INDICATOR |
| 522-0240-003 | MOUNTING |
| 522-0854-003 | MARKER BEACON ANTENNA |
| 522-0854-069 | MARKER BEACON ANTENNA |
| 522-0890-005 | COURSE INDICATOR |
| 522-0893-004 | INSTRUMENT AMPLIFIER |
| 522-1217-000 | COMPENSATOR |
| 522-1219-000 | APPROACH HORIZON INDICATOR ADI |
| 522-1225-000 | DIRECT DRIVE SERVO |
| 522-1226-000 | SERVO MOUNT |
| 522134 | POWER MONITOR PANEL |
| 522-1513-005 | DIRECTIONAL GYRO |
| 522-1619-004 | COMPASS AMPLIFIER |
| 522-1619-046 | COMPASS AMPLIFIER |
 | 522-1660-000 | HF TRANSCEIVER |
| 522-1660-031 | HF TRANSCEIVER |
| 522-1836-000 | ADF RECEIVER |
| 522-1859-033 | INDICATOR DME DISTANCE, TYPE 339D1 |
| 522-1936-047 | SLAVE INDICATOR |
| 522-1936-049 | SLAVE INDICATOR |
| 522-2357-000 | ADF CONTROL |
| 522-2447-250 | NAV COMM CONTROL UNIT |
| 522-2447-260 | NAV COMM CONTROL UNIT |
| 522-2448-055 | CONTROL |
 | 522-2450-015 | VOR ILS NAV RECEIVER |
 | 522-2450-016 | VOR ILS NAV RECEIVER |
 | 522-2450-018 | VOR ILS NAV RECEIVER |
| 522-2450-115 | VOR ILS NAV RECEIVER |
| 522-2457-000 | HF CONTROL PANEL |
| 522-2457-020 | HF CONTROL PANEL |
| 522247 | VIBRATION INDICATOR |
| 522-2576-000 | VERTICAL GYRO |
| 522-2587-000 | ADF RECEIVER |
| 522-2615-005 | ADF LOOP ANTENNA |
 | 522-2615-006 | ADF LOOP ANTENNA |
| 522-2630-000 | ANTENNA |
| 522-2638-001 | DIRECTIONAL GYRO |
| 522-2638-006 | INDICATOR |
| 522-2638-008 | INDICATOR PN101 |
| 522-2643-00 | DETECTOR FLUX |
| 522-2643-000 | FLUX DETECTOR |
| 522-2644-011 | SLAVING ACCESSORY |
| 522-2645-000 | DIRECTIONAL GYRO |
| 522-2702-054 | DME TRANSCEIVER |
| 522-2716-004 | ANTENNA COUPLER |
| 522-2736-004 | RF COMPENSATOR |
| 522-2736-008 | R.F. COMPENSATOR |
| 522-2754-004 | VHF TRANSCEIVER |
| 522-2782-004 | COURSE INDICATOR |
| 522-2867-XXX | AMPLIFIER SPEAKER |
| 522-2900-027 | AUTOPILOT AMPLIFIER |
 | 522-2901-002 | AUTOPILOT COMPUTER |
| 522-2901-021 | AUTOPILOT COMPUTER |
| 522-29711-4903 | INDICATOR RAD/BAR 4 DIGIT |
| 522-2996-000 | MARKER BEACON RECEIVER |
| 522-2996-011 | MARKER BEACON RECEIVER |
| 522-2996-017 | RECEIVER MARKER |
| 522-2996-107 | MARKER BEACON RECEIVER |
| 522-3120-004 | INSTRUMENT AMPLIFIER |
| 522-3120-005 | INSTRUMENT AMPLIFIER |
| 522-3130-000 | ALTITUDE CONTROL |
| 522-3177-007 | R.F. COMPENSATOR |
| 522-3206-004 | FLIGHT DIRECTOR INDICATOR FDI |
| 522-3206-005 | FLIGHT DIRECTOR INDICATOR FDI |
| 522-3206-006 | FLIGHT DIRECTOR INDICATOR FDI |
| 522-3207-003 | FLIGHT COMPUTER |
| 522-3241-00 | DIRECTIONAL GYRO |
| 522-3241-000 | DIRECTIONAL GYRO |
| 522-3251-000 | MOUNTING TRAY |
| 522-3266-000 | AMPLIFIER |
| 522-3443-000 | HF ANTENNA COUPLER |
 | 522-3444-001 | HF ANTENNA COUPLER |
| 522-3466-00 | SERVOMOTOR |
| 522-3466-000 | PITCH TRIM SERVO |
| 522-3551-001 | PEDISTAL CONTROL |
| 522-3613-000 | CONTROL |
| 522-3808-003 | ERROR CORRECTOR |
| 522-3851-001 | RATE GYRO |
| 522-3866-001 | INSTRUMENT AMPLIFIER |
| 522-3866-002 | INSTRUMENT AMPLIFIER |
| 522-3985-001 | VERTICAL GYRO |
| 522-4017-002 | PEDESTAL CONTROLLER |
| 522-4017-003 | PEDESTAL CONTROLLER |
| 522-4057-001 | CVR |
| 522-4088-203 | VHF TRANSCEIVER |
| 522-4089-004 | VHF TRANSCEIVER |
| 522-4089-204 | VHF TRANSCEIVER |
| 522-4114-003 | RADIO ALTIMETER INDICATOR |
 | 522-4140-001 | RADIO ALTIMETER ANTENNA |
| 522-4140-002 | RADIO ALTIMETER ANTENNA |
| 522-4140-006 | RADIO ALTIMETER ANTENNA |
 | 522-4280-001 | VOR ILS NAV RECEIVER |
 | 522-4280-005 | VOR ILS NAV RECEIVER |
 | 522-4280-105 | VOR ILS NAV RECEIVER |
 | 522-4280-109 | VOR ILS NAV RECEIVER |
| 522-4329-001 | VERTICAL SENSOR |
| 522-4466-001 | HF REMOTE CONTROL |
