# SDR SWAA2025052172112

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 17, 2025
- Submitted: May 21, 2025
- Operation: Air carrier
- Aircraft: N7859B
- Make and model: Boeing 737-7Q8
- Registry model: [Boeing 737-7Q8](https://openairdocs.org/model/boeing-737-7q8) (OpenAirDocs)
- Aircraft serial: 30641
- Aircraft time: 63,181 hours, 34,384 cycles
- Engine: Cfmint CFM567B20
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Making Metal
- Location: Nr 2
- Stage of operation: CR
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2025052172112

## Discrepancy

NR 2 ENGINE OIL FILTER BYPASS LIGHT.    PERFORMED FIM TASK 79-05 TASK 817.  FOUND NO DISAGREE MESSAGES & NO CLOGGED STATE. PERFORMED PARAG E STEP 3 (C), INSPECTED CHIP DETECTOR IAW AMM 79-00-00-200-804-F00. FOUND LARGE CHUNKS OF METAL INSIDE SCAVENGE SCREEN FROM  AGB/TGB SCAV MCD.    REMOVED NR 2 ENG SCAV FILTER FOUND MED & FINE PARTICLES,  INSTALLED NEW FILTER & LEAK CHKD IAW AMM 79-29-07.  FILTER ROUTED FOR ANALYSIS. REMOVED NR 2 ENG OIL SUPPLY FILTER,  FOUND MINOR FINE PARTICLES, INSTALLED NEW FILTER & LEAK CHKD IAW AMM 79-29-06. FILTER ROUTED FOR ANALYSIS. PERFORMED A HIGH POWER RUN FOR 20 MINS IAW AMM 71-00-00.  INSPECTED CHIP DETECTORS IAW AMM 79-00-00 . FWD TWO CHIP DETECTORS HAD METAL.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.