What was found
DURING ROUTINE C-CHECK INSPECTION, FOUND LT WING CRACKED ON LEADING EDGE UPPER SKIN AT STATION XCW 69.500. REMOVED FASTENERS AS NEEDED TO PERFORM REPAIR. REMOVED DAMAGED AREA. PERFORMED NDT INSPECTION. NO CRACK, NO CORROSION, FABRICATED DOUBLER, FILLER PLUG. PERFORMED HEAT TREATMENT CLEANED, TREATED AND PRIMED AREA AND REPAIR PARTS. INSTALLED NEW FASTENERS AND REPAIR PARTS IAW SRM 57-2-1 FIGURE 20 SHEETS 1, 2, 3 SRM 51-1-20D, SRM 57-2-1 FIGURE 20 SHEET 1, SRM 51-1-12 FIGURE 7, NDT SPM PART 06-10-01-001, SRM 57-3-2 FIGURE 15 ITEM "J", SRM 51-10-0 FIGURE 21, SRM 51-1-1 PAGES 1, 13 AND 17 SRM 51-1-8, AND SRM 51-1-11. (S)