Letter to the Group of Experts from the Antonov Design Bureau stating that operation of S9-GAW, S9-PSM and S9-PSK aircraft is unsafe and impermissible without mandated servicing by specialists of Antonov Aeronautical Scientific/Technical Complex
Letter to the Group of Experts from the Antonov Design Bureau stating that operation of S9-GAW, S9-PSM and S9-PSK aircraft is unsafe and impermissible without mandated servicing by specialists of Antonov Aeronautical Scientific/Technical Complex