The first deep-sea underwater vehicle for the USSR Navy was Poisk-2, Project 1832, developed by LPMB Rubin. The underwater vehicle was intended for researching the aquatic environment and the ocean floor, detecting and examining underwater objects, as well as for performing special underwater work in the interests of the Navy. In total, only 4 units were built for this project.

Deep-submergence vehicle AGA-6 laid down on 31 March 1970 at the Leningradskoe admiralteyskoe obyedinenie (yard No.01650), launched in 1973, commissioned on 25 December 1975 and was assigned to the Black Sea Fleet.

The submarine was part of the 288th group of special purpose submarines of the Rescue Group of the Black Sea Fleet.

In 1977 renamed to AS-6.

On 22 May 1998 the submarine AS-6 was decommissioned and excluded from the lists of the Black Sea Fleet.