As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT FLOOR BEAM CAP SUPPORT EXTRUSION CORRODED FROM FS 409 TO FS 409+128 AT RBL 9.0. C-CHECK RO 10/1/2020. REMOVED AND REPLACED UNSERVICEABLE FLOOR BEAM CAP EXTRUSION WITH A NEW SERVICEABLE FLOOR BEAM CAP EXTRUSION AT RBL 9.0 FS 409+128 P/N 601R31117-17, IAW CRJ 200 SRM AND DRAWING. COMPLIED WITH TASK CARD AND M-337 ATTACHED. WEIGHT AND BALANCE NOT AFFECTED.