What was found
DURING C-3 CHECK, INSPECTION REPORTED CORROSION AROUND FASTENER HOLE AT FR68, RT SIDE, APPROX ONE FOOT INBD OF DOOR SKIN. BLENDED CORROSION AROUND HOLE AND FOUND INTERGRANULAR CORROSION INSIDE FASTENER HOLE THAT WAS FOUND TO BE OUT OF LIMITS IAW SRM 51-74-00. REPLACED FLOORBEAM IAW SRMS 51-42-11 AND 51-44-11.