the work order for refitting of the submarine `` komsomolets '' between cruises , which was signed off by division commander rear admiral o. t. shkiryatov and approved by flotilla deputy commander rear admiral l. b. nikitin , foresaw repair of television system equipment -lrb- one of the television cameras of this system was in compartment 7 of the submarine -rrb- and the oxygen gas analyzer for compartment 7 -lrb- items 7 and 71 of the work order -rrb- .