# SDR UALA2008111305393

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 22, 2008
- Submitted: December 11, 2008
- Operation: Air carrier
- Aircraft: [N107UA](https://openairdocs.org/aircraft/N107UA), registered now
- Make and model: Boeing 747422
- Aircraft serial: 26900
- Aircraft time: 41,554 hours, 5,069 cycles
- Engine: Pwa PW4056
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Part number: 2156556HS
- Condition: False Activation
- Location: Crew Rest Area
- Stage of operation: TX
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2008111305393

## Discrepancy

SMOKE ALARM IN FLT ATT CREW REST AREA WENT OFF 2X ON TAXI IN.  ALSO LOUD NOISE HEARD BENEATH 5L.  DOOR 5 SMOKE DETECT CB CYCLED, SYS RESET, ALL OPS NORMAL.  UNABLE TO REPRODUCE LOUD NOISE UNDER 5L.  NO FAULT FOUND.

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