To simplify the installation of equipment, the boat was designed using zonal blocks, which made it possible to transfer a significant amount of work from the cramped conditions of the sub's compartments directly to the workshop.

After completion of the installation, the zonal unit is "rolled" into the hull of the boat and connected to the main cables and pipelines of the ship's systems.

Two auxiliary electric motors in the hinged outboard columns have a capacity of 410 hp and there is one diesel generator ASDG-1000.

Samara underwent refit in 2010 and in July, the boat participated in the parade of ships in the Amur Bay on the roadstead of Vladivostok in honor of the Navy Day.

[10] As of 21 August 2014, the boat, together with K-391 Bratsk of Project 971, was being prepared for transportation to Severodvinsk for modernization at the Zvezdochka Ship Repair Center.

[11] On 26 September 2014, Samara and Bratsk were delivered to Severodvinsk along the Northern Sea Route from Kamchatka by the Dutch dock Transshelf for deep modernization.