# SDR SWAA2022121982839

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 17, 2022
- Submitted: December 19, 2022
- Operation: Air carrier
- Aircraft: [N427WN](https://openairdocs.org/aircraft/N427WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29831
- Aircraft time: 68,701 hours, 40,551 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Detector
- Condition: False Activation
- Location: Mlg Ww
- Stage of operation: DE
- 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/SWAA2022121982839

## Discrepancy

ON DESCENT,  WHEEL WELL FIRE WARNING ILLUMINATED.  AFTER QRH CHECKLIST, LIGHT REMAINED ILLUMINATED.   TRIED A NEW WHEEL WELL OVERHEAT DETECTION BOX; NO HELP; FAULT CODE 84, WHEEL WELL STILL SHOWS.  REMOVED AND REPLACED WHEEL WELL FIRE DETECTOR ELEMENT IAW AMM 26-18-02. OPS CHECKED GOOD.

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