What was found
DURING ROUTINE C CHECK INSPECTION, FOUND LT WING CENTER LEADING EDGE UPPER SPLICE CRACKED AT STATION XS 427.000. REMOVED FASTENERS AS NEEDED TO PERFORM REPAIR. FABRICATED SPLICE. PERFORMED DYE PENETRANT INSPECTION. NO CRACK AND NO CORROSION FOUND. CLEANED, TREATED, PRIMED AREA AND REPAIR PARTS. INSTALLED NEW FASTENERS AND REPAIR PARTS IAW SRM 57-2-1 FIGURE 12 SHEETS 1-4, SRM 51-1-21, SRM 51-3-0, SRM 51-1-20D, SRM 57-2-1 FIGURE 12 SHEETS 1-3, SRM 51-5-2, SRM 51-1-8B, SRM 51-3-0, AND SRM 51-3-1.