as for the `` consequences '' : the operator at the main propulsion unit console did not fulfill requirements of articles 90 and 91 of the rbzh-pl-82 with regard to sealing off the distressed compartment , and he did not close the remotely controlled kingston valve of the stern-tube gland 's cooling system , which does not affect the submarine 's propulsion ; this resulted in entry of water into compartment 7 following rupture of the rava hose in response to the fire .