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 A C-CHECK STATUS WHEN INSPECTION FOUND CORROSION ON FRAME 75 VERTICAL STAB FITTING, 4 BOLT HOLES HAD SOME CORROSION. MAINTENANCE REMOVED THE FITTING AND REAMED THE FOUR HOLES AND BUSHINGS INSTALLED. THEN REINSTALL THE FITTING IAW EC 5530-01185A. ALL WORK WAS ACCOMPLISHED AND WILL BE RELEASED AT THE END OF THE CHECK.