As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON FLOOR SUPPORT SPLICE LOWER CHORD BTW STA 865-881 AND 9RBL AT FLOOR STRUCTURE OF PASSENGER CABIN (CPAX). FLOOR SUPPORT SPLICE WAS EVALUATED OUT OF LIMITS PER CRJ900 SRM 53-51-43-101-001-A02; FABRICATED PER DWG NO. SH670-32161 REV. NC AND WAS REPLACED PER CRJ900 SRM 51-42-21-001-001-A01"