# SDR 98ZZZX1869

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 23, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N313QS](https://openairdocs.org/aircraft/N313QS), registered now
- Make and model: Cessna 650
- Registry model: [Cessna 650](https://openairdocs.org/model/cessna-650) (OpenAirDocs)
- Aircraft serial: 650013
- System (JASC): [2460 · DC Power Distribution System](https://openairdocs.org/jasc/2460)
- Part: Connection
- Condition: Loose
- Location: Aux Dc J-Box
- Part time: 7,009 hours
- Stage of operation: NR
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98ZZZX1869

## Discrepancy

PILOT REPORTED AFT J-BOX CB ANNUNCIATOR ILLUMINATED IN-FLIGHT.  FOUND BAGGAGE HEAT AND APU AUX HYD PUMP CONTROL CB'S LOCATED IN AUX DC J-BOX TRIPPED.  USED AN INSP MIRROR AND FOUND NO OBVIOUS WIRING DEFECTS.  AFTER SEVERAL HRS OF SYS T/S AFT J-BOX CB ANNUNCIATOR ILLUMINATED.  SMOKE WAS EMITTING FROM AUX J-BOX, ALL SYSTEMS WERE SHUT DOWN, FIRE WAS EXTINGUISHED.  DURING AUX J-BOX REMOVAL, THE SELF-LOCKING NUT SECURING TERMINAL LUG OF MAIN POWER CABLE WAS FOUND LOOSE.  HEAT GENERATED FROM ADDED RESISTANCE TRIPPED CB'S AND CAUSED FIRE.  AUX J-BOX PREVIOUSLY REMOVED 1-97 TO ACCOMPLISH SB 29-9.  PHASES 1-5 COMPLETED 2-98.

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