# SDR AALA202111011223

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 29, 2021
- Submitted: November 1, 2021
- Operation: Air carrier
- Aircraft: [N836AA](https://openairdocs.org/aircraft/N836AA), registered now
- Make and model: Boeing 787-9
- Registry model: [Boeing 787-9](https://openairdocs.org/model/boeing-787-9) (OpenAirDocs)
- Aircraft serial: 40654
- Aircraft time: 12,990 hours, 1,513 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Condition: False Activation
- Location: Zone 900 - Lav/G
- Stage of operation: CR
- How discovered: V
- Nature of condition: J, N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202111011223

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: AT CRUISE 3L LAVATORY SMOKE ALARMS ALERTED WITH CHIMES AND ENGINE INDICATING AND CREW ALERTING SYSTEM. LAVATORY INSPECTED WITH NO SMOKE DETECTED. ACCOMPLISHED FIM 26-10-F3-42A-421A-A ON 3L LAVATORY OPERATIONS CHECKS OK.

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