# SDR P5CA2014110900051

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 9, 2014
- Submitted: November 17, 2014
- Operation: Air carrier
- Aircraft: [N858GT](https://openairdocs.org/aircraft/N858GT), registered now
- Make and model: Boeing 747-87UF
- Registry model: [Boeing 747-87UF](https://openairdocs.org/model/boeing-747-87uf) (OpenAirDocs)
- Aircraft serial: 37569
- Aircraft time: 12,139 hours, 2,224 cycles
- Engine: Ge GENX2B67B
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: B-Nut
- Condition: Loose
- Location: Engine Oil
- 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/P5CA2014110900051

## Discrepancy

OIL QUANTITY NR 2 ENGINE DECREASED TO ZERO OVER A 2 HOUR PERIOD, DIVERTED. PRESSURE AND TEMPERATURE STAYED NORMAL.  FOUND NR 5 BEARING SCAVENGE TUBE B-NUT LOOSE. TORQUED B-NUT IAW AMM 79-21-09.  PERFORMED GROUND RUN AND NO LEAKS NOTED.

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