Service difficulty report · Turbine Blades · Boeing 74746NF

Difficulty date
September 11, 2007
Submitted
September 24, 2007
Operation
Air carrier
Aircraft
N450PA
Make and model
Boeing 74746NF
Aircraft serial
30808
Aircraft time
28,578 hours, 4,853 cycles
Engine
Ge CF680C2*
Engine time
28,578 hours, 4,853 cycles
Part
Turbine Blades
Part number
1538M90P12
Part serial
VARIOUS
Condition
Cracked
Location
Hpt Rotor
Part time
28,578 hours, 4,853 cycles
Component
Rotor · Ge
Component part number
9255M20G06
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

ESN 706199 - HPT STAGE 1 BLADES FOUND WITH UNDER PLATEFORM CORROSION AND CRACKS, STAGE 1 P/N 1538M90P12 (80EA).

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