# SDR QXEA0001157

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 4, 2000
- Submitted: May 8, 2000
- Operation: Air carrier
- Aircraft: N480AU
- Make and model: Fokker F.28 MK4000
- Registry model: [Fokker F.28 MK4000](https://openairdocs.org/model/fokker-f-28-mk4000) (OpenAirDocs)
- Aircraft serial: 11229
- Aircraft time: 30,467 hours, 37,177 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Smoke Detector
- Condition: Activated
- Location: Lavatory
- Component: Apu, Garrtt
- Component part number: 38075412
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QXEA0001157

## Discrepancy

SMF - CLIMBING THROUGH 4,000 FEET, RECEIVED REPORT THAT THE NR 2 LAV SMOKE DETECTOR WAS SOUNDING.  CREW DECIDED TO RETURN TO FIELD.  ON SHORT FINAL, SMOKE DETECTOR QUIT SOUNDING.  REMOVED AND REPLACED APU, OPERATIONAL CHECKS GOOD.  AIRCRAFT RETURNED TO SERVICE.

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