# SDR 2007UALA02965

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 1, 2007
- Submitted: August 8, 2007
- Operation: Air carrier
- Aircraft: [N791UA](https://openairdocs.org/aircraft/N791UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26933
- Aircraft time: 43,213 hours, 6,579 cycles
- Engine: Pwa PW4090
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Circuit Board
- Condition: Faulted
- Location: Smoke Detection
- Stage of operation: IN
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007UALA02965

## Discrepancy

DET ZONE 1 CARGO AFT MESSAGE.  REPLACED CARGO SMOKE DETECTOR. TESTED THRU THE MAINTENANCE ACCESS TERMINAL.  NO MESSEGE FOUND GROUND TESTED NORMAL.  SUSPECT ELECTRONIC CIRCUIT FAULT.

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