As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INITIAL INSPECTION: CORROSION ON SUPPORTS OF MONUMENTS BTW FS 295.00/LBL37 AND BTW FS 377.00/LBL 37 AT PASSENGER CABIN FLOOR STRUCTURE. CORROSION ON SUPPORT OF MONUMENTS BTW FS377.00 LBL37 AT PASSENGER CABIN FLOOR STRUCTURE WAS EVALUATED OUT OF LIMITS PER CRJ900 SRM 53-21-43-101-001-A03 AND WAS REPLACED PER CRJ900 SRM 51-42-21-001-001-A01