What was found
KMCN - DURING C-CHECK, FOUND SKIN CRACKED THROUGH RIVET INBOARD SLOT L/E UPPER, OUTBOARD FORWARD RIGHT WING. FABRICATED DOUBLER FROM 7075T6 AL AND INSTALLED IAW DER APPROVED COTNEY ENGINEERING SKETCH A46-R02 AND IAW DC-8 SRM 51-1-21, 51-1-20C. (M)