# SDR SWAA2020122137387

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 18, 2020
- Submitted: December 21, 2020
- Operation: Air carrier
- Aircraft: [N259WN](https://openairdocs.org/aircraft/N259WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 35554
- Aircraft time: 48,723 hours, 29,094 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Detector
- Condition: False Indication
- Location: Aft Lavatory
- Stage of operation: NR
- How discovered: 9
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2020122137387

## Discrepancy

AFT LAV FIRE ALARM SIGNALED FIRE.  NO HEAT OR SMOKE DETECTED.  AFT LAV SMOKE DETECTION SYSTEM OPERATIONS CHECKED NUMEROUS TIMES.  OPERATIONS CHECKED GOOD, PER M/M 26-14-01.

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