# SDR UALA2008111300478

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 28, 2008
- Submitted: December 19, 2008
- Operation: Air carrier
- Aircraft: N906UA
- Make and model: Boeing 737522
- Aircraft serial: 25006
- Aircraft time: 47,111 hours, 29,773 cycles
- Engine: Cfmint CFM563C1
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Module
- Part number: 655449932
- Part serial: D01280
- Condition: Malfunctioned
- Location: Fire Warning
- Stage of operation: IN
- How discovered: 9
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2008111300478

## Discrepancy

CREW REPORTS ON PREFLT, GET NO BELL DURING FIRE TEST.  APU HORN IN WHEEL WELL DOES COME ON.  FOUND FAULTY AURAL WARNING MODULE.  REPLACED AURAL WARNING MODULE.

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