# SDR SWAA2026010557829

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 3, 2026
- Submitted: January 5, 2026
- Operation: Air carrier
- Aircraft: [N8329B](https://openairdocs.org/aircraft/N8329B), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 37006
- Aircraft time: 42,518 hours, 20,175 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Condition: Odor
- Location: Zone 200
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2026010557829

## Discrepancy

SMELL OF ELECTRICAL CIRCUIT IN CABIN NO SMELLS IN COCKPIT. SMELL WAS MID CABIN SOURCE UNKNOWN NO SMOKE JUST SMELL. BOTH ENGINE BLEEDS ON BOTH PACKS AUTO. APU OFF.   FOUND LT RECIRC FAN CIRCUIT BREAKER OPEN; REMOVED AND REPLACED LT RECIRC FAN IAW AMM 21-25-02; OPS TEST GOOD; NO CABIN ODOR NOTED. PERFORMED CONDITIONAL INSPECTION FOR FUMES IN CABIN IAW AMM 05-51-56; NO DEFECTS NOTED.

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