As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON FLOORBEAM FS280 BTW LBL9.00 / RBL9.00 AT PILOTS CABIN STRUCTURE. EXCESSIVE CORROSION ON FLOORBEAM FS280 BTW LBL9.00 / RBL9.00 WAS EVALUATED PER CRJ-900 SRM 53-00-00-101-001-A01 AND REPLACED PER CRJ-900 SRM 51-42-06-001-001-A01 AND CRJ-900 SRM 51-42-21-001-001-A01.