What was found
CORROSION COMMON TO PRESSURE FLOOR SILL AT FS 513.00, LBL 42 ***AIRCRAFT REMOVED FROM SERVICE*** REMOVED CORROSION ON PRESSURE FLOOR ANGLE FS 513.00, LBL 42, PERFORMED HFEC INSPECTION WITH NO INDICATIONS, PERFORMED UT THICKNESS CHECK, REMAINING MATERIAL WITHIN LIMITS REF REO601R-53-41-666 REV C DATED 2012-11-06.