# SDR AALA2020032759001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 24, 2020
- Submitted: March 27, 2020
- Operation: Air carrier
- Aircraft: [N974UY](https://openairdocs.org/aircraft/N974UY), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 4898
- Aircraft time: 29,641 hours, 11,219 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Warning
- Condition: False Activation
- Location: Lavatory
- Stage of operation: NR
- 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/AALA2020032759001

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: LAVATORY SMOKE WARNING ECAM DISPLAYED, FORWARD L1 LAVATORY WHILE PASSENGER WAS IN LAVATORY. NO EVIDENCE OF SMOKE WHEN DOOR OPENED AND PASSENGER QUESTIONED. MAINTENANCE ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK OF SMOKE DETECTION SYSTEM PER AMM 26-17-00.

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