2 November 1973 - a Yak-40 (Registration unknown) was hijacked en route by 4 hijackers that demanded money and to be flown to Sweden. Stormed by security forces at an unknown airport in Moscow. 2 people were killed.
Aviation Photo #2194268: Yakovlev Yak-40 - Balkan - Bulgarian Airlines
W/o 2 aug. 1988 Sofia. Aircraft overran runway 09 into a ravine of the Iskar River and burst in flames... - Photo taken at Varna (VAR / LBWN) in Bulgaria on August 28, 1987.