What was found
TYS During a scheduled inspection, corrosion was found on the floor gussets at the entrance to the cockpit, between frames 15 and 18. Maintenance removed and replaced gusset and center section of forward digital plate (fabricated doubler, shims and cockpit step bracket),alodined, primed and painted. I.A.W.-EMB135/145-SRM-51-40-02 and CMP-51-21-04,05 and 06., and EC5320-01059. Repair procedure was satisfactory and the aircraft will be released upon complection of inspection.