# SDR SWAA2026072864092

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 24, 2026
- Submitted: July 29, 2026
- Operation: Air carrier
- Aircraft: [N901WN](https://openairdocs.org/aircraft/N901WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32545
- Aircraft time: 60,427 hours, 35,273 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Detector
- Part number: 902864
- Part serial: 6777
- Condition: Illuminated
- Location: Zone 400
- Stage of operation: TX
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2026072864092

## Discrepancy

#2 ENGINE OVERHEAT LIGHT ILLUMINATED ON START_ REMOVED AND REPLACED NR 2 ENGINE FAN UPPER DETECTOR FIRE DETECTOR IAW AMM 26-11-01. PREFORMED NR 2 ENGINE IDLE RUN ENGINE RUN GOOD, NO FAULTS OR INDICATIONS FOUND. ENGINE RUN NORMAL IAW AMM 71-00-00.

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