- Difficulty date
- May 18, 2010
- Submitted
- May 19, 2010
- Operation
- Air carrier
- Filed by
- VGQY082L
St Engineering Aerospace Services Company Pte. Ltd - Make and model
- Boeing 747243B
- Aircraft serial
- 23476
- Aircraft time
- 84,534 hours, 13,992 cycles
- Part
- Mount
- Part number
- 65B943492
- Condition
- Corroded
- Location
- Nr 4 Engine
- 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
CORROSION PRODUCTS (RUST) NR 4 ENGINE-PYLON / AFT UPPER MOUNT / MATING SURFACE. NR 4 ENGINE AFT UPPER MOUNT REWORKED AND REMOVED CORROSION PER OHM 71-20-02 REV 23, FIG 402, REPAIR 2G. MPI INSPECTION CARRIED OUT PER SOPM 20-20-01 REV 28. NO CRACK EVIDENT. REFINISHED AND COMPLETED REWORK PER 71-20-02 REV 23, FIG 402, REPAIR 2G REQUIREMENTS. COMPLIED WITH EN 1116-10 (NR 4 PYLON AFT ENGINE MOUNT FITTING 65B94349-2 EXCEED OHM 71-20-02 REPAIR LIMITS).