As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON FLOOR SILL BTW FS280.00 - FS310.00 ON RIGHT SIDE. FLOOR SILL BTW FS280.00 - FS310.00 ON RIGHT SIDE WAS EVALUATED OUT OF LIMITS PER CRJ900 SRM 53-00-45-201-001-A01 AND WAS REPLACED PER CRJ900 SRM 51-42-06-001-001-A01, CRJ900 SRM 51-42-21-001-001-A01 AND CRJ900 SRM 51-42-13-001-001-A01.