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.

The Ministry of Defense of the Russian Federation officially denied information about the fire, and stated that a small fire occurred on the submarine from a broken portable lamp, which was quickly extinguished by the LOCH system, there were no injuries, no damage, the service on the boat was in normal mode.

[9] On the night of 11 February 2012, the torpedo compartment commander, senior lieutenant Maxim Galkin, was found hanged on the Gepard nuclear submarine.

In March 2014, the shipboard crew of the cruising nuclear submarine Gepard was awarded the Challenge Cup of the Commander of the Northern Fleet (SF) based on the results of the professional skill competition.

In November 2015, the Gepard nuclear submarine returned to service after the restoration of technical readiness at the Nerpa shipyard.

On 18 June 2021, in the Barents Sea, as part of a planned tactical exercise at the Northern Fleet's combat training grounds, the nuclear-powered cruising submarine Gepard performed a torpedo attack by a detachment of imaginary enemy ships with salvo firing with practical (training) ammunition.