# SDR USAA2014123000016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 26, 2014
- Submitted: December 30, 2014
- Operation: Air carrier
- Aircraft: [N753US](https://openairdocs.org/aircraft/N753US), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1326
- Aircraft time: 33,146 hours, 25,416 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Control Unit
- Part number: RAI2800M0706
- Part serial: Q00160006143
- Condition: Faulty
- Location: Smoke Detection
- Part time: 40,209 hours, 15,955 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2014123000016

## Discrepancy

IN LEVEL FLIGHT, AT FLIGHT LEVEL 300, GOT SMOKE LAVATORY SMOKE WARNING 3 TIMES FOR 1 - 2 MINUTES EACH TIME.  FLIGHT ATTENDANTS THOUGHT THEY SMELLED SMOKE, ACFT DIVERTED.  VISUALLY INSPECTED FWD LAVATORY, NO BURNT WIRING OR SMOKE SMELL.  REPLACED SMOKE DETECTION CONTROL UNIT IAW AMM 26-17-34-400-001A.  BITE CHECKED GOOD.  ALL LAVATORY SMOKE DETECTORS TESTED GOOD.

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