As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON FLOORBEAM FS280 (RBL9 TO LBL9) AT CABIN FLOOR STRUCTURE. FLOORBEAM FS280 (RBL9 TO LBL9) AT CABIN FLOOR STRUCTURE IT IS OUT OF LIMITS PER CRJ900 SRM 53-00-00-101-001-A01 THEREFORE WAS REPLACED PER CRJ900 SRM 51-42-06-001-001-A01 AND SRM 51-42-10-001-001-A01