Following is a list of accidents and incidents Aeroflot experienced in the 1950s. The deadliest event the Soviet Union's flag carrier went through in the decade occurred in October 1958, when a Tupolev Tu-104 crashed en route to Sverdlovsk, then located in the Russian SSR, killing all 80 occupants on board. In terms of fatalities, the accident ranks as the eighth worst accident involving a Tu-104, as of July 2016. Another aircraft of the type was involved in the second deadliest accident the airline experienced in the decade, this time in August 1958, when 64 people were killed when the aircraft crashed near Chita after entering an updraft. The Tu-104's tail was modified and the service ceiling lowered in the wake of these two accidents.