Built in 1989. Tu-154M-LK1 combined zero-gravity trainer and open-skies aircraft. Operated by Yuri Gagarin Cosmonaut Training Centre with cyrillic Открытое небо - Российская Федерация titles (Open Skies - Russian Federation). Registered as CCCP-85655 then RA-85655 by 1994 and RF-85655 in 2014.