# SDR SIMA992842

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 11, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N533AT
- Make and model: Aerosp ATR 72-212
- Registry model: [Aerosp ATR 72-212](https://openairdocs.org/model/aerospatiale-atr-72-212) (OpenAirDocs)
- Aircraft serial: 533
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Part number: FR3123
- Condition: Failed
- Location: Lavatory
- Stage of operation: IN
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA992842

## Discrepancy

AFT SMOKE DETECTOR WARNING ILLUMINATED.  VERIFIED EVENT AS A FALSE WARNING.  REMOVED AND REPLACED LAVATORY SMOKE DETECTOR.  AIRCRAFT RETURNED TO SERVICE.  (M)

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