What was found
DURING C-CHECK, FOUND LOWER AFT FUSELAGE C-4 CARGO DOOR CUT-OUT HAS CORROSION THROUGH. CUT-OUT DAMAGED SECTION, FABRICATED DOUBLER AND TRIPLER AND INSTALLED IAW DER NR MHA 3057. TREATED AND PRIMED IAW SRM 51-1-8, SEALED AREA IAW SRM 51-1-14. REPAIRED UNDER DAC GLP 1748-96-05-02-009. (X)