What was found
SHIP 3325 WHILE IN SEA, MTC DISCOVERED THREE (3) DAMAGE LOCATIONS COMMON TO THE AFT CARGO DOOR P/N F5237231500600 INNER SKIN, BETWEEN DOOR FRAMES FR61-FR61A, BETWEEN FR62-FR62A (DAMAGE 2), AND BETWEEN FR63-FR63A (DAMAGE 3). DAMAGE 1 IS A GOUGE LOCATED APPROXIMATELY 4.0" AFT OF FR61, 1.5" ABOVE BEAM 5 AND MEASURES 0.65" X 0.25" X 0.058". DAMAGE 2 IS A GOUGE LOCATED APPROXIMATELY 4.0" AFT OF FR62, 1.5" ABOVE BEAM 5, AND MEASURES 0.65" X 0.25" X 0.025". DAMAGE 3 IS A PUNCTURE WITH AN AREA OF 2.5" FWD/AFT BY 1.75" CIRCUMFERENTIALLY ABOVE DOOR BEAM 5. THE INNER SKIN AT THESE LOCATIONS IS 0.050" THICK 2024-T3 ALUMINUM. A330-300 SRM 52-32-00-300-008 PROVIDES A REINFORCING INNER SKIN REPAIR HOWEVER, MTC DOES NOT HAVE APPROPRIATE SHEET METAL THICKNESS FOR REPAIR DOUBLER TO ACCOMPLISH THE REPAIR. INSPECTIONS REQUIRED FOR FURTHER DTE ANALYSIS. CORRECTIVE ACTION: REF ERA 612648-14 FOR REPAIR AND INSPECTION. (0020368)