What was found
DURING D CHECK INSPECTION, FOUND CORROSION ON BELLY SKIN IN NUMEROUS AREAS F/S 190-450 LONGERON 31 LT TO 31 RT. REMOVED CORRODED SKIN, DRILLED, TREATED, PRIMED AND INSTALLED NEW SKIN IAW DACO DWG 5755271, AND DC8 SRM 51-1-8, 51-1-21, 51-1-20D.