SDR UIEA2011061500314

Service difficulty report · Engine · Boeing 74747UF

Difficulty date: June 15, 2011
Submitted: June 16, 2011
Operation: Air carrier
Aircraft: N496MC
Make and model: Boeing 74747UF
Aircraft serial: 29257
Aircraft time: 51,546 hours, 7,922 cycles
Engine: Ge CF680C2B1F
System (JASC): 7200 · Engine (Turbine/Turboprop)
Part: Engine
Condition: Vibration
Stage of operation: TO
How discovered: O
Nature of condition: E, J
Precautionary procedure: C

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

What was found

ON TAKE-OFF ROLL, ENGINE VIBE 4 SHOWED 5.2. FELT A VIBRATION WHEN SELECTING MAX THRUST (VISUALLY INSPECTED INLET/EXHAUST OF ENGINE, MAG CHIP DETECTOR AND & NBSP; ENGINE LPT AREA COMPONENTS AMD VIBRATION PICKUP CONNECTOR & NBSP; ALL IAW FIM 71-00. PERFORMED BORO INSP OF HPC 1ST, 5TH,9TH AND 12TH STAGES, AND 1ST, 2ND, STAGE HPT IAW MM 72-00-00. FOUND ALL WITHIN MM LIMITS)

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