|Aircraft registration number||RA-2097G|
|Place of aircraft departure|
|Airport of departure|
|Intended Airport of arrival|
|Accident site||в районе х. Муравейники Ростовской области|
|Aircraft type||ЕЭВС ЛТЮ-1208|
|Aircraft owner||Частное лицо|
|The date of the completion of the investigation (report)|
|Number of fatalities||2|
|Degree of aircraft destruction|
The accident with LTYu-1208 ("Schweizer 269C") RA-2097G private single-built helicopter occurred in the area of Muraveyniki Khutor, Rostov Region (RF) on December 6, 2013. According to the available information the pilot and a passenger on board were killed, the rotorcraft was destroyed and burnt down.
The Interstate Aviation Committee has formed the Investigation team of the accident in accordance with the Russian Aviation Lrgislation. The Investigation team started its work.
The Investigation team of the Interstate Aviation Committee has completed the investigation of the accident with LTYu-1208 RA-2097G single-built private helicopter occurred in the Rostov region (RF) on December 6, 2014.
Fatal accident with LTYu-1208 RA-2097G private helicopter most probably was caused by helicopter vortex-ring state that resulted in rotorcraft ground impact at a high vertical speed.
The helicopter vortex-ring state was caused by the lack of rotorcraft piloting skills (the pilot didn't perform en-route flights before, 6 days prior to the accident he performed the first "hovering" flight).
The following factors most probably contributed to the accident:
- lack of Pilot's theoretical skills (he studied helicopter aerodynamics by the Internet web-sites);
- ignorance of helicopter "vortex-ring" state critical condition, conditions of this mode encounter and correct actions in order to recover from it:
- not holding of recommended flight speeds and altitudes;
- possible incorrect attention allocation during helicopter piloting.
The appropriate safety recommendations based on the investigation results were developed.