Academician Berg with K-56 was a "navigation incident with serious consequences." A civilian expert from Leningrad, 16 officers, five warrant officers, and five sailors were killed. References Bibliography External links Книга памяти - K-56 ПЛАРК - Проект 675, 675М, 675МК, 675МУ, 675МКВ Echo-class submarines Ships built in the Soviet Union 1965 ships Cold War submarines of the Soviet Union Maritime incidents in 1973 Soviet submarine accidents 1973 in the Soviet Union Ships built by Sevmash