# SDR AALA202507297298

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 26, 2025
- Submitted: July 29, 2025
- Operation: Air carrier
- Aircraft: [N403AN](https://openairdocs.org/aircraft/N403AN), registered now
- Make and model: Airbus A321-253NX
- Registry model: [Airbus A321-253NX](https://openairdocs.org/model/airbus-a321-253nx) (OpenAirDocs)
- Aircraft serial: 8780
- Aircraft time: 20,920 hours, 5,790 cycles
- System (JASC): [2610 · Detection System](https://openairdocs.org/jasc/2610)
- Part: Filter
- Condition: Dirty
- Location: Smoke Detector
- 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/AALA202507297298

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: LAVATORY SMOKE WARNING ECAM INFLIGHT AT CRUISE THAT SELF-CLEARED AFTER ABOUT 7 SECONDS. MAINTENANCE NOTED ON THE SMOKE WARNINGS REPORT REFLECTED FAULTS AT THE AFT LEFT LAVATORY SMOKE DETECTOR. MAINTENACE CLEANED DUST FROM THE SMOKE DETECTOR FILTER PER TSM 26-17-00810-804-A

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