Accident to the helicopter AS350 registered RA-07277 on 07/12/2017 at Bratsk Reservoir [Investigation led by MAK / Russian Federation]

Preliminary data based on the notification from the Russian Federation authorities:

The accident sequence TBD. On December 11, 2017 the SAR helicopter crew detected the helicopter main rotor wreckage and the oil spots on the iced surface of the Bratsk water reservoir.