As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TYS During a schedule inspection, corrosion was found on the lower TCAS 2 antenna. Maintenance removed and replaced the TCAS antenna I.A.W.-EMB-145-AMM-34-43-03, operational checked good. The repair was satisfactory and the aircraft will be released upon complection of the inspection.