# SDR SWAA2023102012429

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 19, 2023
- Submitted: October 20, 2023
- Operation: Air carrier
- Aircraft: [N8311Q](https://openairdocs.org/aircraft/N8311Q), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 38808
- Aircraft time: 37,325 hours, 17,312 cycles
- System (JASC): [7330 · Engine Fuel Indicating System](https://openairdocs.org/jasc/7330)
- Part: Filter
- Part number: UNKNOWN
- Condition: Faulty
- Location: Zn 400 Nacelle/P
- Stage of operation: CL
- How discovered: 9
- Nature of condition: J, O
- Precautionary procedure: D, O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2023102012429

## Discrepancy

LEFT FUEL BYPASS ILLUMINATED IN CLIMB<[01] R+R #1 MAIN ENG FUEL FILTER NO CONTAMINATES NOTED IAW AMM 73-34-01 EV # E027503

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