Conn. Gen. Stat. § 12-245: Local taxation of real and personal property.

Real property and personal property, except flight equipment owned or being operated by a public air carrier which air carrier is engaged principally in scheduled or nonscheduled interstate or foreign air transportation for hire under a certificate of public convenience and necessity or other economic authority issued by the civil aeronautics board or its successor, shall be taxed locally in accordance with the applicable laws of this state.