As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON FLOOR BEAM TOP SURFACE AT FS 1031.00, RBL 9. C-CHECK RO 12/26/2020. CORROSION IS BEYOND ALLOWABLE DAMAGE LIMITS. PERFORMED SPLICE REPAIR OF RBL 9 FLOORBEAM FROM FS 1015-1047, REF CRJ 900 SRM AND REO. COMPLETED FORM M-337. SEE CONTINUATION CARD FOR DETAILS.