Mi-8 RA-22343 17.11.2012

Accident date	17.11.2012
Investigation status
Aircraft registration number	RA-22343
Place of aircraft departure	п.п. "Игол 0"
Airport of departure
Intended destination	п.п. "Седельниково РТК"
Intended Airport of arrival
Accident site	в районе п.п. Седельниково Омской области
Latitude	56°55,805’ СШ
Longitude	75°17,449’ ВД
Aircraft type	MI-8
Serial №	7171
Aircraft operator	ОАО "Авиакомпания "ЮТэйр"
Aircraft owner	ОАО "Авиакомпания "ЮТэйр"
The date of the completion of the investigation (report)	24.01.2013
Number of fatalities	0
Victims accuracy
Degree of aircraft destruction
Report	report_ra-22343.pdf (1.74 MB)
Aviation type	Commercial
Works type
Note

01 february 2013

     The Interstate Aviation Committee Investigation team has completed the investigation of the accident with Mi-8Т RA-22343 helicopter operated by "UTair" Airlines occurred in the Omsk region (RF) on November 17, 2012. The accident with Mi-8Т RA-22343 helicopter was caused by the crew erroneous actions during approach resulted in anti-torque rotor entering vortex ring mode and uncontrolled helicopter left-hand rotation.
      Anti-torque rotor entering vortex ring mode was caused by exceeding FOM flight limitations of Mi-8T helicopter.
      FOM limitations were violated in allowable right cross wind, due to addition of wind speed to hovering helicopter controlled movement.
      Appropriate safety recommendations based on the investigation results were developed.