# SDR AALA202505134486

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 10, 2025
- Submitted: May 13, 2025
- Operation: Air carrier
- Aircraft: [N406AN](https://openairdocs.org/aircraft/N406AN), registered now
- Make and model: Airbus A321-253NX
- Registry model: [Airbus A321-253NX](https://openairdocs.org/model/airbus-a321-253nx) (OpenAirDocs)
- Aircraft serial: 8834
- Aircraft time: 20,110 hours, 5,516 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Condition: False Activation
- 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/AALA202505134486

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: LAVATORY SMOKE MASTER WARNING AND ECAM DURING FLIGHT.  FLIGHT CREW FOUND NO EVIDENCE OF SMOKE. MAINTENANCE ACCOMPLISHED TSM 26-17-00-810-804-A AND FOUND THE SMOKE DETECTOR FUNCTIONED NORMALLY AND NO FAULT WAS DETECTED.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.