Sioux Falls, SD (KELO-AM) - A close call for a Chicago bound regional jet with 54 aboard Sunday afternoon in Sioux Falls. Envoy Air Flight 30-47, an Embraer 145 twin jet, left Joe Foss Field around 12:40PM, turned around after just eight minutes, reporting engine trouble. According to Airport Deputy Director Richard King, the plane made a safe emergency landing back at Sioux Falls. Envoy is a regional carrier for American Airlines.