As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
"AFTER REMOVAL OF FLOOR SUPPORT ANGLE, CORROSION ON RH SIDE FLOOR BEAM AT FS 280.00. RH SIDE FLOOR BEAM AT FS280.00 WAS EVALUATED OUT OF LIMITS PER CRJ900 SRM 53-00-01-101-001-A01 AND WAS REPLACED PER CRJ900 SRM 51-42-21-001-001-A01 AND CRJ900 SRM 51-42-06-001-001-A01"