As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TYS - AIRCRAFT IN C-CHECK STATUS AND INSPECTION FOUND THE LT FLOOR SILL AT FR 39 CORRODED. MAINTENANCE REMOVED AND REPLACED THE FLOOR SILL IAW EMB 145XR SRM 51-40-02. ALL WORK WAS ACCOMPLISHED AND WILL BE RELEASED AT THE END OF THE CHECK.