What was found
DURING ROUTINE C-CHECK INSPECTION, EXTERNAL FUS LWR SKIN WORN AT SEVERAL SPOTS; STA 680.000 - STA 720.000. PERFORMED MAJOR REPARI BY REMOVING CORROSION IAW DC8 SRH 51-1-8 PGS 17, 18. FOUND OUT OF LIMITS IAW DC8 SRM 53-2-0 PAGE 2P. REMOVED THE DAMAGED AREA IAW SEMON DWG NO EO-4185. PERFORMED NDT INSPECTION IAW DC8 NDT SPM PART 06-10-01. FABRICATED NEW PANEL SEGMENT AND REPAIR DOUBLER STRAP AND TRIPLER STRAP. CLEANED TREATED AND PRIMED AREA AND REPAIR PARTS IAW DC8 SRM 51-1-8B. INSTALLED REPAIR PARTS IAW SEMAN DWG EO-4185 DC8 SRM 51-1-20D, DC8 SRM 51-3-0 DC8 SRM 51-3-1.