# SDR UIEA2012121900555

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 19, 2012
- Submitted: December 19, 2012
- Operation: Air carrier
- Aircraft: [N412MC](https://openairdocs.org/aircraft/N412MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 30559
- Aircraft time: 56,543 hours, 8,502 cycles
- Engine: Ge CF680C2B1F
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Line
- Condition: Leaking
- Location: Engine Oil Sys
- Stage of operation: CL
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2012121900555

## Discrepancy

OIL QTY OF NR 4 ENGINE WENT TO ZERO.  SHUTDOWN ENGINE IAW QRH.  PERFORMED ENGINE INSPECTION IAW AMM 79-00-00/601.  ACCOMPLISHED ENGINE WINDMILLING INSPECTION IAW AMM 72-00-00/601. DURING ENGINE INSPECTION, THE OIL PRESSURE TRANSMITTER WAS FOUND TO BE LEAKING. THE TRANSMITTER OIL LINE WAS SECURED IAW AMM 79-32-01.  HIGH POWER RUN WAS ACCOMPLISHED IAW 71-00-00 AND NO LEAKS WERE NOTED.  THE WINDMILL INSPECTION FOUND NO DEFECTS.  ACFT DEPARTED WITH NO FURTHER INCIDENT.

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