As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TYS - A/C CURRENTLY IN C-CHECK WHEN INSPECTION FOUND CORROSION ON THE RIGHT FLOOR SILLS FROM FRAME 29 THRU FRAME 48 OUT OF MFG LIMITS. MAINTENANCE REMOVED AND REPLACED THE FLOOR SILLS IAW EMB 145XR SRM 51040-02. A/C WILL BE RELEASED AT THE END OF THE CHECK. SSI 53-20-11.