# SDR AWXA0001243

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2001
- Submitted: January 12, 2001
- Operation: Air carrier
- Aircraft: [N179AW](https://openairdocs.org/aircraft/N179AW), registered now
- Make and model: Boeing 737277
- Aircraft serial: 22646
- Engine time: 59,889 hours, 54,221 cycles
- System (JASC): [7931 · Engine Oil Pressure](https://openairdocs.org/jasc/7931)
- Part: Bushing
- Part number: 313594
- Condition: Damaged
- Location: Main Gearbox
- Component: Main Gearbox, Pwa
- Component part number: 717000
- Stage of operation: CR
- 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/AWXA0001243

## Discrepancy

NR 2 ENG LOW OIL PRESSURE LIGHT ILLUMINATED IN FLIGHT.  CREW SHUT ENGINE DOWN AND COMPLETED CHECK LIST.  THE ENGINE MAINTAINED POSITIVE OIL PRESSURE THROUGHOUT THE FLIGHT; ENGINE WINDMILLED 25 - 30 MINUTES.  MAINTENANCE FOUND THE HSG PLUG BUSHING THREADS DAMAGED AND THE O-RING BLOWN OUT; THE PLUG WAS INSTALLED AT THE LP5 PORT ON THE MAIN GEARBOX; THE FITTING WAS REPLACED AND MAIN OIL FILTER INSPECTED, NO DEBRIS FOUND.  ENGINE RUNS CHECKED GOOD.

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