Service difficulty report · Engine · Boeing 74747UF

Difficulty date
April 19, 2015
Submitted
April 20, 2015
Operation
Air carrier
Aircraft
N408MC
Make and model
Boeing 74747UF
Aircraft serial
29261
Aircraft time
67,107 hours, 10,866 cycles
Engine
Ge CF680C2B1F
Part
Engine
Condition
Failed
Location
Nr 1
Stage of operation
CL
How discovered
O
Nature of condition
R, J
Precautionary procedure
A

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

What was found

DURING TAKEOFF ROLL & CLIMB OUT, NR 1 ENGINE SURGED +/- 3-4 PERCENT N1 WITH 50 DEGREE INCREASE IN EGT. ACCOMPLISHED CHECK LIST. ENG 1 STABILIZED AT CRUISE. STATUS MESSAGE, NR 1 ENGINE CONTROL. BORESCOPE INSPECTION ACCOMPLISHED IAW AMM 72-00-00-206-001-J00. FOUND MULTIPLE BLADES WITH DAMAGED LE, BENT, TEARS & MID-SPAN SHROUD SHINGLING & CONTACT WITH GUIDE VANES, DAMAGE OUT OF LIMITS. MAX POWER ASSURANCE TEST ACCOMPLISHED IAW EO 1972A568.

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