# SDR 2006UALA01583

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 13, 2006
- Submitted: August 22, 2006
- Operation: Air carrier
- Aircraft: N327UA
- Make and model: Boeing 737322
- Aircraft serial: 24147
- Aircraft time: 52,995 hours, 29,334 cycles
- Engine: Cfmint CFM563C1
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Wire Harness
- Condition: Damaged
- Location: Apu Bay
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: F, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2006UALA01583

## Discrepancy

WITH APU SHUTDOWN, THE APU DET INOP LIGHT ON AND 5 MINS LATER THE APU FIRE WARNING LIGHT AND BELL CAME ON.  FOUND APU FIRE DETECTION LOOP HARNESS SHORTED.  REPLACED APU FIRE DETECTION LOOP HARNESS.

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