# SDR SWAA2020041743138

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 16, 2020
- Submitted: April 17, 2020
- Operation: Air carrier
- Aircraft: [N749SW](https://openairdocs.org/aircraft/N749SW), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29801
- Aircraft time: 72,226 hours, 42,209 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Condition: Faulty
- Location: Lavatory
- Stage of operation: UK
- 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/SWAA2020041743138

## Discrepancy

AFT LAV SMOKE DETECTOR SOUNDING BELOW 10;000 WITH NO APARENT SMOKE / REPLACED SMOKE DETECTOR PER AMM 26-14-01 OPS CHECK'S NORMAL

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