# SDR SWAA2025103129753

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 29, 2025
- Submitted: October 31, 2025
- Operation: Air carrier
- Aircraft: [N249WN](https://openairdocs.org/aircraft/N249WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 34951
- Aircraft time: 63,185 hours, 38,178 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Detector
- Condition: Faulted
- Location: Zone 400
- Stage of operation: CR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2025103129753

## Discrepancy

ENGINE FIRE/OVERHEAT DETECTOR FAULT LIGHT ILLUMINATED IN FLIGHT.   REFERENCE TTG8Q0164YJ2 FOR REMOVAL AND REPLACEMENT OF #1 ENGINE CORE INBOARD FIRE DETECTION ASSEMBLY REPLACEMENT.

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