As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLOOR SUPPORT CORRODED AT MULTIPLE AREAS, FORWARD SIDE OF THE FS 280.00 BEAM BETWEEN BL 9L-BL 9R. C-CHECK RO 9/27/2020. FLOOR SUPPORT ANGLE AT FS 280 BETWEEN BL 9L-BL 9R IS CORRODED AND OUT LIMITS, REF CRJ-700 SRM. REMOVED AND INSTALLED NEW COCKPIT FLOOR SUPPORT ANGLE, REF DWG AND CRJ-700 SRM. COMPLIED WITH TASK CARD.