|Aircraft registration number
|Place of aircraft departure
|Airport of departure
|Intended Airport of arrival
|in the region of Tasganta locality of the Altai region
|The date of the completion of the investigation (report)
|Number of fatalities
|Degree of aircraft destruction
report_RA-06205.pdf (2.75 MB)
Non-fatal accident with helicopter R-66 RA-06205 operated by "KUSTARD" LLC occurred near Tasganta locality, Altai Republic, RF. According to the available information 2 crew members and 2 passengers on board were not injured, the rotorcraft was burnt.
The Interstate Aviation Committee has assigned the Investigation team of this accident in accordance with the Russian Aviation Legislation. The Investigation team has started its work.
The Investigation team of the Interstate Aviation Committee has completed the investigation of the accident with Robinson R-66 RA-06205 helicopter owned by "Kustard" LLC occurred on January 20, 2015 in the Republic of Altai (RF).
Most probably the accident with R-66 RA-06205 helicopter was caused by engine flameout in flight that resulted in rotor revolution loss (thrust loss) and helicopter ground impact.
Engine flameout most probably was caused by fuel outflow and fuel tank intake denudation during uncoordinated (with sideslip) right turn with large bank angles (possible with exceeding 60° limitation). During yawed flight the turn force which contributes to the fuel outflow emerges.
Contributing factor was significant wind flow and orographic turbulence influence on helicopter during take off at low altitude in a gorge where the pilot wasn't familiar with wind conditions.
The appropriate safety recommendations based on the investigation results were presented.