# SDR AALA2020020539031

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 31, 2020
- Submitted: February 5, 2020
- Operation: Air carrier
- Aircraft: [N834AA](https://openairdocs.org/aircraft/N834AA), registered now
- Make and model: Boeing 787-9
- Registry model: [Boeing 787-9](https://openairdocs.org/model/boeing-787-9) (OpenAirDocs)
- Aircraft serial: 40653
- Aircraft time: 8,740 hours, 901 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Condition: False Activation
- Location: L1 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/AALA2020020539031

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: L1 LAVATORY SMOKE DETECTOR AURAL WARNING INDICATED. NO SMOKE WAS DETECTED. MAINTENANCE PERFORMED SATISFACTORY LAVATORY SMOKE DETECTION SYSTEM TEST IAW MM 26-13-00.

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