# SDR SWAA2026100735774

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 6, 2026
- Submitted: October 8, 2026
- Operation: Air carrier
- Aircraft: [N8631A](https://openairdocs.org/aircraft/N8631A), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 42385
- Aircraft time: 41,417 hours, 20,195 cycles
- Engine: Cfmint CFM567B27E
- System (JASC): [7310 · Engine Fuel Distribution](https://openairdocs.org/jasc/7310)
- Part: Filter
- Condition: Warning Message
- Location: Nr 1 Eng Fuel
- 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/SWAA2026100735774

## Discrepancy

NR 1 ENG FUEL FILTER BYPASS LIGHT ILLUMINATED.  DRAINED FUEL FILTER NO CONTAMINATION NOTED. FILTER TO BE REPLACED IN 1 CYCLE. OK TO CONTINUE ON MEL 73-4-01 SP1 MDDR 343842.  REMOVED & REPLACED FUEL FILTER & FUEL FILTER DIFFERENTIAL PRESSURE SWITCH IAW M/M 73-34-01 & 73-11-02, RAN ENGINE, OPS CKD NORMAL & LEAK CHKD NORMAL.

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