Deck Six extends from the back of the Propulsion module, all the way out along the boom to the rearmost docking tube. Here most of the smaller equipment to be stored in the Propulsion Module is loaded, and is then taken in one of three directions; up to Deck 1; back, remaining on deck 6; down to decks 7 through 16.
The turbolifts that connect all the decks meet in the middle of the Propulsion Module on Deck 6. Back behind the turbolifts are the engineering access ports for the upper sublight engines. Here the accessways meet up with the access ways for the whole rear part of the Propulsion Module, including those for all the Sublight Engines, the Hyperdrive, and the Fuel Tanks. While turbolifts take the engineering crews quickly to the general place of need, the access ways give the crews direct access to the problem areas.