# SDR AALA202205028393

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 30, 2022
- Submitted: May 2, 2022
- Operation: Air carrier
- Aircraft: [N738US](https://openairdocs.org/aircraft/N738US), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1254
- Aircraft time: 56,599 hours, 34,058 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: None
- Condition: False Activation
- Location: Zone 900 - Lav/G
- Stage of operation: NR
- How discovered: V
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202205028393

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: LAVATORY SMOKE WARNING INTERMITTENTLY ILLUMINATED IN FLIGHT. LAVATORIES CHECKED. NO SMOKE. DO NOT KNOW WHAT LAVATORY. MAINTENANCE ACCOMPLISHED A  BITE CHECK OF THE SMOKE DETECTOR CONTROL UNIT (SDCU) WITH NO FAULTS NOTED.

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