# SDR 2007UALA05255

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 22, 2007
- Submitted: December 26, 2007
- Operation: Air carrier
- Aircraft: N104UA
- Make and model: Boeing 747422
- Aircraft serial: 26902
- Aircraft time: 41,441 hours, 5,019 cycles
- Engine: Pwa PW4056
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Part number: 2156656
- Condition: False Activation
- Location: Fwd Cargo Bay
- Stage of operation: IN
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007UALA05255

## Discrepancy

STATUS MESSAGE CARGO FWD-2 LOOP-A MESSAGE.  STATUS MESSAGE CARGO FWD-2 LOOP-A MESSAGE.  NO ACTIVE MESSAGE ON AIRCRAFT ARRIVAL. NO PRESENT LEG FAULTS. NUMEROUS FIRE TESTS CARRIED OUT BOTH FROM OVERHEAD SWITCH AND CMC GROUND TEST. ALL TESTS PASS. DEFERRAL CLEARED.

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