What was found
"B" CARGO DOOR AFT LWR JAMB CORNER 0.750" CRACK STA 560.000 L-31R TO L-32R. PERFORMED MAJOR REPAIR IAW AD2005-18-07 S/B 53-078 REV 1 JAN 25-01, FAA FORM 8100-9 DATED 02-05-07, BOEING MSG 1-274569547-4 DATED 02-05-07. REMOVED EXISTING REPAIR DOUBLER IAW SRM 51-1-21, SRM 51-1-20D. CUT OUT DAMAGED SECTION IAW BOEING MS 1-274569547-4, SEMAN DWG ED4428. PERFORMED NDT INPS IAW DC8 NDT SPM PART 06-10-01-001. NO CRACK OR CORROSION FOUND. FABRICATED REPAIR DOUBLER (AL7075T6 0.090") REPAIR TRIPLER (AL7075T6 0.125") 2 FILLERS (AL7075T6 0.080") IAW BOEING MSG 1-274569547-4, SEMAN DWG ED4428. CLEANED, TREATED AND PRIMED AREA AND REPAIR PARTS IAW SRM 51-1-8B. APPLIED SEALANT TO FAYING SURFACES IAW SRM 51-1-11. INSTA