Google with some edits:
Chairman of the Technical Commission of the Interstate Aviation Committee reports that the necessary stages of the investigation the crash of the Yak-42D w / n 42 434, which took place 09.07.2011 in the town of Yaroslavl, are satisfied, including:
- Special studies of drums wheels, brakes and braking systems of units, as well as the technical condition of aircraft tires. At the conclusion of the FAA "State Center" Safety in Air Transport ", failures of these units has not been detected;
- Completed processing and analysis of recorders, including analysis of engines, airborne systems and equipment, crew actions, identification of the voices of the members of the crew;
- Mathematical simulation of an emergency flight;
- Flight experiment conducted on the basis of LII. MM Gromov, with the participation of experienced test pilots for the program, coordinated Research Institute of Civil Aviation and LII approved flight-Methodical Council LII. The data obtained in the experiment, confirmed the results of mathematical modeling of an accident flight;
- Analyze all of the documentation submitted by airlines "Yak Service", including the organization of flight operations, crew training, medical records and test results and airlines Rostransnadzor Rosaviatsia after the accident;
- Analysis of accidents and disasters of aircraft Yak-42 for the entire period of their operation with the calculation of probability estimates failsafe systems and components, etc. According to available data in the Technical Commission for the period of operation of aircraft Yak-42 there has been no incident, including accident, for reasons related to ergonomics cockpit.
The technical committee has all the necessary materials, surveys conducted by research institutes and centers, flight and technical experts to establish the systemic and immediate causes of all relevant factors and circumstances of this accident, as well as developing a set of necessary measures for safety.
The work will be completed within the next 2 weeks.