As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FRAME CORRODED AT FS 310 BETWEEN STGR 25L TO STGR 26R. C-CHECK RO 10/1/2020. REMOVED AND REPLACED FRAME SECTOR, IAW CRJ200 SRM AND BOMBARDIER DWG. COMPLETED TASK CARD AND ATTACHED COMPLETED FORM M-337. NO WEIGHT CHANGE. SEE CONTINUATION CARD FOR DETAILS OF WORK PERFORMED.