Little adventure happened on a recent flight.
After a climb of 300 meters above the starting point was a short-term deterioration in the quality of communication. Has been shut down engine drone. We thought that the autopilot mode included an emergency landing. OK! Landing! Although the connection is not much worse and that’s fine. Translate into shallow dive. In a wide arc slow down the aircraft, stub rate move on the final approach. Here colleague shouted: «You have a fire on board !!!». Land the plane. I looked at the pick up point. Smoke and flame to the waist! The people running stew. Grab water bottle and behind them.
The control system is not to blame. During the climb engine controller heated to the melting point and and the burning of the foam.
The motor is turned off. While the aircraft was reduced airflow knocked down the flames. And as soon as the drone stopped — fire severely inflamed.