# SDR AALA201703299009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 28, 2017
- Submitted: March 30, 2017
- Operation: Air carrier
- Aircraft: [N538UW](https://openairdocs.org/aircraft/N538UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 4050
- Aircraft time: 24,530 hours, 9,621 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Part number: PPC120000
- Part serial: 7479
- Condition: False Indication
- Location: Lavatory
- Part time: 26,502 hours, 9,611 cycles
- 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/AALA201703299009

## Discrepancy

IN FLIGHT, AT FL 320, MASTER CAUTION RED FOLLOWED BY A LAVATORY SMOKE ECAM MESSAGE, FAS CHECKED ALL LAVATORIES, NO SMOKE OR FIRE FOUND. REPLACED LAVATORY D SMOKE DETECTOR.

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