# SDR 96UAL900636

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 16, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N657UA](https://openairdocs.org/aircraft/N657UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 27112
- Engine: Pwa PW4060
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Warning
- Condition: Malfunctioned
- Location: Engine
- Component: Boeing, 285T03855
- Stage of operation: CL
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96UAL900636

## Discrepancy

AIRCRAFT RETURNED TO THE FIELD AT SFO UNDER AMBER ALERT DUE TO A FIRE BELL AURAL WARNING.  *S/D*  THE ENGINE FIRE DETECTION SYSTEM CAUSED THE AURAL WARNING.  A BITE TEST WAS PERFORMED AND INDICATED NO FAULTS.  THE M1000 BELL CHIME MODULE WAS REPLACED AS A PRECAUTION.  THIS MODULE WAS DETERMINED TO BE SERVICEABLE AND WAS RETURNED TO SERVICE.  NO OTHER FAULTS HAVE BEEN INDICATED SINCE THIS INCIDENT.

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