11/30/2008. Produced in 1949 as on of the last of 193 AF-2S', this former anti-submarine aircraft, BuNo. 129233, was one of five converted by Aero Union into an aerial tanker. Listed as number E21 and registered as N9994Z it served till 1973. It is incorrectly marked, the registration N9995Z belongs to another AF-2S (ex 126792) that is registered to an owner in Ocala, Florida.