As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FS 333.00 IS CORRODED ON THE FORWARD FACE OF FRAME AT STR 27 AND ON THE AFT FACE AND ANGLE OF FRAME BETWEEN STR 26L TO STR 25R. C-CHECK RO 10/13/2020. REPLACED LOWER FRAME SEGMENT WITH A SERVICEABLE SEGMENT AT FS 333.00, IAW CRJ 200 SRM. COMPLETED TASK CARD AND ATTACHED COMPLETED FORM 337. NO WEIGHT CHANGE, REFERENCE CONTINUATION FOR WORK PERFORMED.