# SDR CA111110004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 4, 2010
- Submitted: January 23, 2013
- Operation: Air carrier
- Make and model: Bombdr DHC8400
- Engine: Pwc PW150A
- Propeller: Rotol CR4086123F17
- System (JASC): [2497 · Electrical Power System Wiring](https://openairdocs.org/jasc/2497)
- Part: Wire Harness
- Condition: Burned
- Location: Ahirs
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA111110004

## Discrepancy

(CAN) AFTER CHANGING FLUX VALVE AND AHIRS COMPUTER THAT FIXED INITIAL WRITEUP FOR HEADING FLAG, RUNNING AC AND NR 1 AUX FUEL PUMP BREAKER POPPING.  FOUND BAD WIRE BUNDLE.  CURRENTLY T/S TO ISOLATE FUEL PUMP WIRING.  BUNDLE FOUND UNDER FLOORBOARD JUST BEFORE STEP LEADING INTO COCKPIT.  MFG IS INVESTIGATING THIS EVENT TO DETERMINE ROOT CAUSE.

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