Service difficulty report · Engine · Boeing 7474H6

Difficulty date
June 2, 2015
Submitted
June 4, 2015
Operation
Air carrier
Aircraft
N740CK
Make and model
Boeing 7474H6
Aircraft serial
24405
Aircraft time
72,996 hours, 12,872 cycles
Engine
Ge CF680C2B1F
Part
Engine
Condition
Vibration
Location
Nr 2
Stage of operation
CR
How discovered
O
Nature of condition
E
Precautionary procedure
J, A

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

What was found

AFTER ROTATION, CREW NOTICED A VIBRATION. NR 3 ENGINE VIBRATION INDICATOR DISPLAYED HIGH. ALL OTHER ENGINE INDICATIONS WERE NORMAL. VIBRATION DISAPPEARED AFTER REDUCING BELOW TAKEOFF POWER SETTING. OPERATED NR 3 ENGINE AT IDLE THRUST FOR REMAINDER OF FLIGHT. REVERSE NOT USED ON LANDING. R & R NR 3 ENGINE IAW AMM 71-00-02 AND TASK CARD 71-001-00-00. OPS & LEAK CHECKED GOOD IAW MM 71-00-00, TEST NR 8 AND TASK CARD 71-001-00-00. ACFT OK FOR CONTINUED SERVICE.

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