What was found
DURING ROUTINE C CHECK INSPECTION FOUND LEFT HAND WING AILERON UPPER SKIN WITH SPOTS OF CORROSION FROM STATION XA 737.000 TO STATION XA 767.000. PERFORMED MAJOR REPAIR IAW DC8 SRM 57-8-1 FIGURE 4. REMOVED CORROSION IAW DC8 SRM 51-18 PAGES 17, 18. FOUND OUT OF LIMITS IAW DC8 SRM 57-2-0 PAGE 16. REMOVED CORRODED SKIN IAW DC8 SRM 57-1-0 PAGE 1, DC8 SRM 51-1-21. FABRICATED NEW SKIN FROM, AL2024T3 0.020, AND DOUBLER FROM, AL 2024T3 0.016 IAW DC8 SRM 57-8-1 FIG 4 ITEM F, G. BONDED BOTH PARTS WITH HYSOL IAW DC8 SRM 51-1-9. CLEANED, TREATED AND PRIMED AREA, AND NEW SKIN INTERNAL SURFACE IAW DC8 SRM 51-1-8B. APPLIED SEALANT TO FAYING SURFACES IAW DC8 SRM 51-1-11. INSTALLED NEW SKIN IAW DC8 SRM 51-1-21.