Dramatic moment once-biggest plane in the world mysteriously CRUMBLES in mid-air in mystery crash killing all 7 on board

THIS is the moment a Russian military plane mysteriously broke apart in mid-air before crashing into a reservoir and killing seven on board. Shocking new footage shows how the An-22 Antei transport aircraft – once the biggest in the world – disintegrated as it plunged from the sky. The tail section from behind the wing…