What was found
DURING ROUTINE C CHECK INSPECTION, FOUND RIGHT HAND WING CENTER LEADING EDGE UPPER SKIN CORRODED AT STATION XFS 423.000. REMOVED CORROSION. FOUND OUT OF LIMITS. REMOVED FASTENERS AS NEEDED TO PERFORM REPAIR. REMOVED EXISTING REPAIR. FABRICATED NEW SKIN. CLEANED, TREATED, AND PRIMED AREA AND REPAIR PARTS. INSTALLED NEW FASTENERS AND REPAIR PARTS IAW SRM 57-3-2 FIGURE 5 SHEET 1, SRM 51-1-8 PAGES 17-18, SRM 57-2-1 FIGURE 2G T/R 57-95, SRM 51-1-8B, SRM 51-1-21, SRM 51-1-20D, SRM 51-3-0, SRM 51-1-11, AND SRM 51-3-1.