# SDR ASAA2023061743626

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 17, 2023
- Submitted: June 20, 2023
- Operation: Air carrier
- Aircraft: [N403AS](https://openairdocs.org/aircraft/N403AS), registered now
- Make and model: Boeing 737-900ER
- Registry model: [Boeing 737-900ER](https://openairdocs.org/model/boeing-737-900er) (OpenAirDocs)
- Aircraft serial: 41730
- Aircraft time: 39,530 hours, 12,591 cycles
- System (JASC): [7300 · Engine Fuel and Control](https://openairdocs.org/jasc/7300)
- Part: Switch
- Part number: QA07995
- Part serial: RF1010304
- Condition: Failed
- Location: #1 Engine
- Part time: 10,864 hours, 3,252 cycles
- Stage of operation: LD
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023061743626

## Discrepancy

ENGINE #1 FILTER BYPASS LIGHT ILLUMINATED ON LANDING ROLL. GROUNDED - YES. ACCOMPLISHED BITE TEST OF #1 ENG , RECENT STATUS , MESSAGE "73-31071" ENG 2 DUEL CHANNEL FAULT , CHECKED CDU INPUT MONITORING/ FUEL FILTER, FUEL FILTER IS CLOGGED SW 1 CH A SW 1 CHANNEL B. ACCOMPLISHED B737-900 FIM 73-65-TASK 801, REMOVED & REPLACED FUEL FILTER DIFF PRESS SW AN FUEL CLOGGING INDICATOR REF B737-900 AMM 73-34-01-000-801-FOO & 73-34-01-000-801-F00, OPS AND LEAK CK GOOD.

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