# SDR AALA202604305870

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 28, 2026
- Submitted: April 30, 2026
- Operation: Air carrier
- Aircraft: [N576UW](https://openairdocs.org/aircraft/N576UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6027
- Aircraft time: 38,094 hours, 15,537 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Filter
- Condition: Dirty
- Location: Smoke Detector
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202604305870

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: MOMENTARY SMOKE ALARM MID CABIN LAV DURING CRUISE. FLIGHT ATTENDANTS INVESTIGATED AND FOUND NO SIGNS OF SMOKE. MAINTENANCE REPLACED MID LAVATORY SMOKE DETECTOR FILTER AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK OF THE SMOKE DETECTION SYSTEM PER AMM 26-12-00 WITH NO ISSUES NOTED.

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