What was found
LT INNER WING CENTER EXTENDED L/E UPPER SKIN CORRODED AROUND STA. XFS.341.500 TO XOLDI 6.2246. REMOVED FASTNERS. REMOVED CORROSION FOUND OUT OF LIMITS. TRIMMED OUT CORRODED AREA. PERFORMED NDT INSPECTION IAW DC8 NDT SPM PART 06-10-01-001. CLEANED, TREATED AND PRIMED AREA IAW SRM 51-1-8B. FABRICATED A REPAIR DOUBLER (7075-T6 AL0.071) AND SIX FILLERS (7075-T6 AL0.063) IAW EODHL-030543, ED-3388. CLEANED, TREATED AND PRIMED THE REPAIR DOUBLER INTERIOR SURFACE AND FILLERS IAW SRM 51-1-8B. APPLIED PRC SEALANT ON FAYING SURFACES IAW SRM 51-1-11 PG.9. INSTALLED DOUBLERS AND FILLERS ON LT INNER WING CTR. EXTENDED LE UPPER SKIN AROUND STA. XFS. 341.500 TO XOLDI 6.2246 USING NEW FASTENERS.