“The boat is completely ready to enter the factory sea trials, the exit will take place in the very near future,” TASS was told at the 13th shipyard of the Black Sea Fleet.

Alrosa is a project 877V Halibut diesel-electric submarine, which is part of the 4th separate submarine brigade of the Black Sea Fleet of the Russian Navy.

Until 2013, for a long time it was the only operating submarine of the Black Sea Fleet.

In recent years, the submarine was at the 13th shipyard in Sevastopol, where it was dismantled and then reassembled with the replacement of all necessary elements.

Earlier it was reported that the crew of the submarine completed mooring trials, but the exact timing of the return of the submarine to combat formation was not called.