This article controlling the placing of insurance with unauthorized insurers shall not apply to reinsurance or to the following insurance when so placed by licensed agents or brokers of this state:
(1) Insurance on property or operation of railroads engaged in
interstate commerce; or
(2) Insurance of aircraft owned or operated by manufacturers of aircraft or operated in scheduled interstate flight, or cargo of the aircraft, or against liability, other than workers’ compensation and employer’s liability, arising out of the ownership, maintenance, or use
of the aircraft.