During military exercises on Chaud's Crimean range there were two states of emergency: the rocket from it is antiaircraft - the BEECH missile system - M1 blew up hardly having started, then two rockets from the With-300 complex departed not to that party and self-destructed in air.
I told a source about it close to doctrines. In the Ministry of Defence these facts confirmed, but specified that most likely fault age of rockets (and doctrines rockets of 1983-1985 of release were used). And here change of a trajectory could happen owing to an error of calculation of a trajectory or problems to targeting. Fortunately, this time did without victims.
We will remind, one of similar rockets in 2001 too during doctrines incidentally brought down the passenger Tu-154 plane over the Black Sea.