# SDR AALA202205270421

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 26, 2022
- Submitted: May 27, 2022
- Operation: Air carrier
- Aircraft: [N747UW](https://openairdocs.org/aircraft/N747UW), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1301
- Aircraft time: 55,776 hours, 35,190 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Condition: False Indication
- Location: Zone 900 - Lav/G
- Stage of operation: DE
- How discovered: V
- Nature of condition: J, N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202205270421

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: ON DESCENT, LAVATORY SMOKE DETECTOR WARNING 2 TIMES LASTING FOR APPROXIMATELY, 3 SECONDS, NO EVIDENCE OF SMOKE OR FIRE IN ALL LAVATORIES. MAINTENANCE ACCOMPLISHED A SATISFACTORY BITE TEST OF THE SMOKE DETECTION SYSTEM PER AMM 26-10-00-740-801-A.

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