What was found
DURING C-CHECK INSPECTION, LT WING - UPPER SKIN CRACKED .5 INCH, AT STA XRS 110.000, S-16. PERFORMED MAJOR REPAIR IAW FAA FORM 8110-3 06006 DATED 01-05-06, SEMAN DWG ED-4141 DATED 01-03-06, EO SEMAN 20051523 DATED 01-05-06. REMOVED FASTENERS. CUT OUT DAMAGED SECTION IAW SEMAN DWG ED-4141. PERFORMED NDT INSP IAW DC8 NDT SPM PART 06-10-01-001. FABRICATED REPAIR DOUBLER (AL7075T6 0.190) & FILLER (AL7075T6 0.175) AND TAPERED DOUBLER FROM 0.190 TO 0.063 IAW SEMAN DWG ED-4141. CLEANED, TREATED AND PRIMED AREA & REPAIR PARTS INNER FACE IAW DC8 SRM 51-1-8B. APPLIED SEALANT TO FAYING SURFACES IAW DC8 SRM 51-1-11. INSTALLED REPAIR PARTS IAW SEMAN DWG ED-4141, DC8 SRM 51-1-20D, DC8 SRM 51-3-1 (TORQUE).