What was found
LT WING CTR L/E OUTER PLATING SHOWS CORROSION AROUND XW 257.500 (MAJOR REPAIR). PERFORMED MAJOR REPAIR. REMOVED FASTENERS & EXSITING DOUBLER. REMOVED CORROSION, FOUND OUT OF LIMITS. TRIMMED OUT THE DAMAGED SKIN SEGMENT. PERFORMED NDT INSPECTION IAW DC8 NDT SPM PART 6-10-01-001. CLEANED, TREATED AND PRIMED AREA. FABRICATED A REPAIR DOUBLER AND TWO FILLERS EACH IAW EODHL-030626, ED-3458. CLEANED, TREATED AND PRIMED REPAIR DOUBLER INTERIOR SURFACE AND FILLERS. APPLIED PRC SEALANT ON FAYING SURFACES. INSTALLED DOUBLER AND FILLERS ON LT WING CTR L/E OUTER PLATING (AROUND STA. XW.257.500) USING NEW FASTENERS IAW EODHL-030626, ED3458, SRM 51-1-21 PG 1.