What was found
EXTENSIVE CORROSION AND SKIN CRACKING ON FUSELAGE SKIN ON CIRCUMFERENTIAL THAT RUNS DIRECTLY FORWARD OF CENTER EQUIPMENT DOOR ON RIGHT SIDE ABOVE SHEAR STRIP IN BLUE PAINTED AREA. INTERNAL STRUCTURE CORROSION WAS LIMITED TO LIGHT SURFACE CORROSION WHICH WAS CLEANED AND PAINTED. PERFORMED CLASS 3 SKIN REPAIR TO AFFECTED AREA PER SRM 53-20-00. APPROXIMATE SIZE OF PATCH WAS 24 INCHES VERTICALLY BY 18 INCHES LONG.