What was found
DURING ROUTINE C-CHECK, EXTERIOR CORROSION WAS NOTED AT FS 610, BETWEEN LONGERONS 34 LEFT AND RIGHT. THE CORROSION WAS REMOVED BY CUT OUT, ADDING A REPAIR FILLER, AND INSTALLING 2 EXTERNAL REPAIR DOUBLERS. REPAIR WAS ACCOMPLISHED IAW DRAWING HSE27-53-141, WHICH WAS FAA DER APPROVED AND E.O. 53-DC8-139. (X)