Dummy plugs were tethered to the hoses. I could wax on for several pages about the engineroom. Exposed hose and wiring is routed through PVC conduits. A vacuum pump with a hose lets you suck dirt and grime from the bilges and engines. An automatic fire suppression system is standard.
Sound insulation is wrapped around the hull sides, overhead and fuel tanks to minimize noise.
If you do a lot of your own maintenance or are inclined to keep your mechanics comfortable, you'll appreciate this engineroom's serviceability. Service points on the 480 hp Volvo TAMD 74P EDC diesels were inboard, and there was room to maneuver to the outboard side of the engines. The nose cone for the tender garage protrudes through the after engineroom bulkhead, but unlike most other boats with tender garages, the 50's cone can be quickly removed. Not only does this open up and ventilate the space, but it allows easy removal of the batteries. I still feel a sharp pain splintering my spine on occasion thanks to a game of Twister played trying to remove an 8-D battery from a motoryacht designed with no forethought.