The plane landed safely, and the flight instructor and a student on board were not hurt. The collision happened in the city of Chandler near its municipal airport, said police Sgt. Jason McClimans. The Chandler Fire Department received reports of a fire in a field next to the airport shortly before 8 a.m. Crews found a large plume of smoke and the wreckage of the helicopter on fire but were able to extinguish it all relatively quickly, fire officials said.