As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FRAME DOUBLER ON THE AFT SIDE OF FS 409.00 BETWEEN STR 26L AND 26R IS HEAVILY CORRODED. C-CHECK RO 10/13/2020. REMOVED AND REPLACED FRAME DOUBLER ON AFT SIDE OF FS 409.00, IAW CRJ 200 SRM AND BOMBARDIER DWG. COMPETED TASK CARD AND ATTACHED COMPLETED FORM 337. NO WEIGHT CHANGE, REFERENCE CONTINUATION FOR WORK PERFORMED.