# SDR AALA202106189003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 17, 2021
- Submitted: June 18, 2021
- Operation: Air carrier
- Aircraft: [N417AN](https://openairdocs.org/aircraft/N417AN), registered now
- Make and model: Airbus A321-253NX
- Registry model: [Airbus A321-253NX](https://openairdocs.org/model/airbus-a321-253nx) (OpenAirDocs)
- Aircraft serial: 9537
- Aircraft time: 2,981 hours, 844 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Part number: PPC120000
- Condition: False Activation
- Location: Lavatory
- 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/AALA202106189003

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: LAVATORY SMOKE DETECTOR AURAL WARNING OCCURRED 4 TIMES DURING FLIGHT SMOKE UNCONFIRMED / FALSE WARNING. ACCOMPLISHED TSM 26-17-00-810-804-A CHECKED SMOKE DETECTOR FAULT SMOKE WARNING REPORT NO DISCREPANCIES NOTED, CLASS 3 FAULT SHOW NO FAULTS DETECTED, INSPECTED ALL LAVATORIES SMOKE DETECTORS, THEY ARE CLEAN AND NOT COVERED BY DUST.

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