As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON FLOOR SILL AT FLOOOR STRUCTURE PASSENGER CABIN BTW FS 280.00 TO 319.70 FLOOR SILL AT FLOOOR STRUCTURE PASSENGER CABIN BTW FS 280.00 TO 319.70 WAS REPLACED PER CRJ900 SRM 51-42-06-001-001-A01, SRM 51-42-10-001-001-A01 AND CRJ900 SRM 51-42-13-001-001-A01