# SDR AALA202012099008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 8, 2020
- Submitted: December 9, 2020
- Operation: Air carrier
- Aircraft: [N928AM](https://openairdocs.org/aircraft/N928AM), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 7515
- Aircraft time: 11,603 hours, 4,401 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Condition: False Indication
- 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/AALA202012099008

## Discrepancy

AIRCRAFT WAS NOT GROUNDED.  MASTER WARNING DURING CRUISE AT FL330 LAVATORY SMOKE.  ALL 4 LAVATORIES CHECKED BY CABIN CREW AND NO EVIDENCE OF SMOKE.  WARNING LASTED LESS THAN 5 SECONDS.  PERFORMED RESET ,PER AMM 23-73-00.  CABIN INTERCOMMUNICATION DATA SYSTEM MESSAGE 1 CLEARED NO FAULTS.

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