SDR UIEA2012121900555

Service difficulty report · Line · Boeing 74747UF

Difficulty date: December 19, 2012
Submitted: December 19, 2012
Operation: Air carrier
Aircraft: N412MC
Make and model: Boeing 74747UF
Aircraft serial: 30559
Aircraft time: 56,543 hours, 8,502 cycles
Engine: Ge CF680C2B1F
System (JASC): 7261 · Turbine Engine Oil System
Part: Line
Condition: Leaking
Location: Engine Oil Sys
Stage of operation: CL
How discovered: O
Nature of condition: K, J
Precautionary procedure: E, A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

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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