# SDR AALA201809049001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 2, 2018
- Submitted: September 4, 2018
- Operation: Air carrier
- Aircraft: [N932NN](https://openairdocs.org/aircraft/N932NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33488
- Aircraft time: 16,904 hours, 6,771 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Condition: False Activation
- Location: Lavatory
- Stage of operation: NR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201809049001

## Discrepancy

FORWARD LAVATORY SMOKE DETECTOR ALARM BEGAN ALERTING AND THEN STOPPED AFTER APPROXIMATELY 20 CHIMES. NO PERSON OR USAGE HAD OCCURRED IMMEDIATELY PRIOR OR DURING. ELECTRICAL LIGHTING HAD ALSO QUIT. PERFORMED FORWARD LAVATORY SMOKE DETECTION SELF TEST IAW AMM 26-14-00.  OPS CHECKED GOOD, NO FAULTS NOTED.

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