# SDR C7WA0500109

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 12, 2005
- Submitted: August 17, 2005
- Operation: Air carrier
- Aircraft: N742RW
- Make and model: Boeing 727-2M7
- Registry model: [Boeing 727-2M7](https://openairdocs.org/model/boeing-727-2m7) (OpenAirDocs)
- Aircraft serial: 21952
- Engine: Pwa JT8D9A
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Line
- Part number: 652186713
- Condition: Loose
- Location: Nr 1 Engine
- Stage of operation: NR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/C7WA0500109

## Discrepancy

AIR TURNBACK:  ENGINE SHUTDOWN, NR 1 ENGINE OIL FILTER BYPASS LIGHT CAME ON AT 8000 FT, DURING CLIMB OUT.  COMPLETED PRECAUTIONARY SHUTDOWN CHECKLIST.  DURING INSPECTION OF NR 1 ENGINE, FOUND LOOSE LINE B-NUT AT OIL PRESSURE SWITCH.  TIGHTENED B-NUT.  OPERATIONAL CHECK GOOD.  (K)

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