# SDR AALA201803099021

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 8, 2018
- Submitted: March 13, 2018
- Operation: Air carrier
- Aircraft: [N901AA](https://openairdocs.org/aircraft/N901AA), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 7636
- Aircraft time: 2,892 hours, 1,151 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Warning
- 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/AALA201803099021

## Discrepancy

RECEIVED A TRANSITARY ECAM MESSAGE FOR LAVATORY SMOKE, DURING CRUISE.   RESOLVED ASSOCIATED MASTER WARNING , MESSAGE CLEARED ON ITS OWN AFTER APPROXIMATELY 30 SECONDS.  NO EVIDENCE OF SMOKE IN ANY LAVATORIES. OPS CHECKED THE LAVATORY SMOKE DETECTION SYS IAW AMM 26-17-00.  THE SYSTEM TEST NORMAL, NO FAULT NOTED.

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