What was found
ESN 704892 - HPT STAGE 1 BLADES AND STAGE 2 BLADES FOUND WITH UNDER PLATEFORM CORROSION AND CRACKS. STAGE 1 P/N 1538M90P12 (80EA) STAGE 2 P/N 1881M52G05 (74EA).
- Difficulty date
- September 11, 2007
- Submitted
- September 24, 2007
- Operation
- Air carrier
- Aircraft
- N409MC
- Make and model
- Boeing 74747UF
- Aircraft serial
- 30558
- Aircraft time
- 29,729 hours, 4,614 cycles
- Engine
- Ge CF680C2*
- Engine time
- 38,758 hours, 4,671 cycles
- System (JASC)
- 7250 · Turbine Section
- Part
- Turbine Blades
- Part number
- 1538M90P12
- Part serial
- VARIOUS
- Condition
- Cracked
- Location
- Hpt Rotor
- Part time
- 17,179 hours, 2,668 cycles
- Component
- Rotor · Ge
- Component part number
- 9255M20G02
- 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.