What was found
TYS, DURING A SCHEDULED INSPECTION, CORROSION WAS FOUND ON THA LEFT OMEGA BEAM AT FRAME 20. MAINTENANCE CUT OUT THE CORRODED AREA, FABRICATED ANGLES, SHIMS AND FILLER, THEN INSTALLED. IAW EMB-145-SRM-53-21-10 AND 51-40-02. THE REPAIR WAS SATISFACTORY AND THE AIRCRAFT WILL BE RELEASED UPON COMPLETION OF INSPECTION.