As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C CHECK THE LEFT HAND FLOORBEAM AT FRAME 20 WAS FOUND TO BE CORRODED. MAINTENANCE REMOVED THE DAMAGED AREA AND PERFORMED A DOUBLER REPAIR IAW EMB 145 SRM 53-21-10 FIGURE 201 SHEET 2. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.