What was found
*IN MAIN CABIN, ON PRESSURE FLOOR SUPPORT BEAM, FROM APPROXIMATELY 409+128 TO FS559, AND RBL9, HAS CORROSION ON MULTIPLE AREAS OF UPPER SURFACE. (MARKED) (C-CHECK RO 3-25-22) PERFORMED REPAIR ON FLOOR SUPPORT BEAM, FROM APPROXIMATELY 409+128 TO FS559.00, AND RBL9 BY CUTTING THE TOP FLANGES OF THE C CHANNELS AND INSTALLING A HAT EXTRUSION IAW REO 601R-53-41-3021 REV. -- DATE: 2022-02-15, CRJ200 SRM 51-42-21, AND CRJ200 SRM 51-42-22 COMPLIED WITH TASK CARD 51-900-1003-SKY. SEE CONTINUATION CARD FOR DETAILS.