What was found
CORROSION FOUND AT BS 559+48 - 559, 64LBL 40 FLOOR SUPPORT. REMOVED CORROSION FROM LT FLOOR SILL BETWEEN FS 559.48 AND 559.64 IAW SRM 51-21-06. PERFORMED UT THICKNESS INSPECTION OF SILL IAW BSC NDT MANUAL SEC 4.3. MIN. REMAINING THICKNESS IS .056" ORIGINAL IS .063". REMOVED IS .007". PERFORMED EDDY CURRENT INSPECTION IAW NDTM PT.1, 51-20-06, NO INDICATIONS NOTED AT THIS TIME. UPON FURTHER INVESTIGATION, FOUND FLOOR SILL TO BE OUT OF LIMITS IAW SRM 53-00-000. COMPLIED WITH EC/TC REO 601R 53-00-026 AND GREO 601R 53-00-526, REV.