R-44 RA-04286 25.08.2014

     Non-fatal accident with Robinson RA-04286 private helicopter occurred in the area of Naryan-Mar area (RF) on August 25, 2014. The pilot was on board. The rotorcraft was damaged.
     The Interstate Aviation Committee has formed the Investigation team of the accident in accordance with the Russian Aviation Legislation. The Investigation team started its work.
     

     The Investigation team of the Interstate Aviation Committee has completed the investigation of the accident with private R-44 RA-04286 helicopter occurred in Nenets Autonomous Area (RF) on August 25, 2014. 
     The accident occurred due to the helicopter turnover during the emergency landing on saturated terrain with a slope. The emergency landing most probably was caused by the engine power loss during operation.
      The power loss could be due to the:
      - insulation failure of connection lead of magneto contact unit as a result of faulty wire arrangement during the maintenance service of the helicopter;
      - partial destruction of the air filter, the operation of which had to be terminated not later than on December 31, 2012 (in accordance with the service bulletin provisions SB-85 from August 31, 2012.
       The appropriate safety recommendations based on the investigation results were developed.