# SDR AALA202104269001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 25, 2021
- Submitted: April 26, 2021
- Operation: Air carrier
- Aircraft: [N152AA](https://openairdocs.org/aircraft/N152AA), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6887
- Aircraft time: 16,183 hours, 6,243 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- 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/AALA202104269001

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: AT CRUISE, WE GOT A MASTER WARNING, WITH A LAVATORY SMOKE EICAS FOR 10-20 SECONDS. FLIGHT ATTENDANT PANEL SHOWED RIGHT AFT LAVATORY. ALL LAVATORIES INSPECTED WERE OK. ACCOMPLISHED OPERATIONAL TEST OF THE LAVATORY SMOKE-DETECTION SYSTEM IAW AMM 26-17-00-710-001-A.

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