# SDR AALA20170207011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 4, 2017
- Submitted: February 7, 2017
- Operation: Air carrier
- Aircraft: [N877NN](https://openairdocs.org/aircraft/N877NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31131
- Aircraft time: 17,281 hours, 6,909 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Part number: 4755712
- Part serial: ABR7709
- 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/AALA20170207011

## Discrepancy

AIRCRAFT WAS NOT GROUNDED. AFT LEFT LAVATORY SMOKE DETECTOR AURAL/VISUAL ALERT. SUSPECT PASSENGER SMOKING IN LAVATORY. REMOVED AND REPLACED SMOKE DETECTOR IAW AMM 26-14-01. OPERATIONAL CHECK GOOD.

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