was thinking about bilge and ballast pumps,if something did get stuck in pump and the stoker tried to remove the obstacle with his hands and once obstacle was removed the machine just ripped his fingers off?.. if it was just broken steam pipe, escaping steam would not cut his fingers,instead could cause stage 2 stage 3 burns. was thinking about watertight doors reopen/closing and the door slided down while he had fingers in doorframe...