# SDR SWAA2020051576820

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 11, 2020
- Submitted: May 15, 2020
- Operation: Air carrier
- Aircraft: [N236WN](https://openairdocs.org/aircraft/N236WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 34631
- Aircraft time: 48,931 hours, 28,997 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Condition: False Activation
- Location: Lavatory
- Stage of operation: DE
- 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/SWAA2020051576820

## Discrepancy

ON DESENT; FLT ATTENDANTS SAID AFT LAV FIRE ALARM (SMOKE) CAME ON. AFTER 10 MINS W/CONTINOUS SOUND IN CABIN; NO VISUAL FIRE IN LAV; PULLED P-18-3-E-12 LAV SMOKE CB AND ALARM WENT OUT. AFTER LANDING RESET CB VIA MAINT INST AND ALARM DID NOT COME BACK ON / ACTION LP 0084435 R'D & R'D AFT LAV SMOKE DETECTOR PER AMM 26-14-01 MEL CLEARING TRACKING #37891

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