# SDR AALA202502120387

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 11, 2025
- Submitted: February 12, 2025
- Operation: Air carrier
- Aircraft: [N166NN](https://openairdocs.org/aircraft/N166NN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6973
- Aircraft time: 26,244 hours, 10,443 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/AALA202502120387

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: FLIGHT CREW REPORTED THAT WHILE IN CRUISE, A LAVATORY SMOKE ECAM MESSAGE DISPLAYED. FLIGHT ATTENDANT INSPECTED THE FIRST CLASS LAVATORY AND FOUND NO REMAINS OF EVIDENCE NOR ANY FORMS OF TAMPERING. MAINTENANCE ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK OF THE LAVATORY SMOKE DETECTION SYSTEM WITH NO FAULTS OS OR ISSUES NOTED PER AMM 26-17-00.

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