# SDR AALA202610056738

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 29, 2026
- Submitted: October 6, 2026
- Operation: Air carrier
- Aircraft: [N910AU](https://openairdocs.org/aircraft/N910AU), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 7876
- Aircraft time: 28,087 hours, 11,240 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Condition: False Indication
- Location: Zone 900
- Stage of operation: CR
- 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/AALA202610056738

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: DURING FLIGHT HAD SMOKE LAVATORY SMOKE WARNING WHICH THE FLIGHT CREW BELIEVED A PASSENGER WAS SMOKING IN THE MID LAVATORY - THE FLIGHT ATTENDANTS INVESTIGATED ALL LAVATORIES AND NOTICED CIGARETTE SMOKE SMELL IN THE MID LAVATORY - THE FLIGHT ATTENDANTS SEARCHED ALL AREAS WITH NOTHING FOUND - MAINTENANCE PERFORMED BITE TEST OF MID LAVATORY SMOKE DETECTOR PER AMM 26-17-00-710-001A WITH THE TEST RESULTS SATISFACTORY AND NO FAULTS DETECTED - MAINTENANCE INSPECTED MID LAVATORY AND SURROUNDING AREAS WITH NO EVIDENCE OF CIGARETTE SMOKING OR FIRE DAMAGE FOUND

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