Following Saturday's Tu-154B passenger jet explosion in Siberia, Russia's transportation watchdog Rostransnadzor on Sunday recommended that all passenger jets of the same type be put out of service until the cause is determined.
Three military milestones: 101 years ago today, the US Army established its first air field. In 1942, Consolidated's C-32 Dominator made its maiden flight. In 1997, the F-22 Raptor took off for the first time.