Synopsis
EI-BKT, a Bell B206 Jetranger, was engaged in aerial photographic work for a TV documentary. In the course of this work, it flew over the chimneys of a large power station. One of these chimneys was inactive at the time but the other was under power and was emitting a near-invisible plume of exhaust gas and water vapour. When the helicopter entered this plume the engine shut down. Following an autorotation, the helicopter landed nearby. The helicopter suffered significant damage in this landing. The report contains one Safety Recommendation
