What was found
RT INNER WING CTR EXTENDED L/E UPPER SKIN CORRODED AROUND STA XFS 354.000 - XFS 385.250. REMOVED FASTENERS. REMOVED CORROSION, FOUND OUT OF LIMITS. TRIMMED OUT THE CORRODED SKIN AREA. PERFORMED NDT INSPECTION. CLEANED, TREATED AND PRIMED AREA. FABRICATED A REPAIR DOUBLER (7075-T6 AL0.071) AND TWO FILLERS (7075-T6 AL0.063). CLEANED, TREATED AND PRIMED THE REPAIR DOUBLER INTERIOR SURFACE AND THE FILERS IAW SRM 51-1-8B. APPLIED PRC SEALANT ON FAYING SURFACES IAW SRM 51-1-11 PG 9. INSTALLED FILLERS AND DOUBLER ON RT INNER WING CTR EXTENDED L/E UPPER SKIN (AROUND STA XFS 354.000 - XFS 385.000) USING NEW FASTENERS IAW EODHL-030519, ED-3355, SRM 51-1-21 PG 1 AND SRM 51-1-20D PG 9.