KEY WEST, Fla. - Petty Officer 2nd Class Carlos Camacho, 32, of Cali, Columbia, a machinery technician aboard the Coast Guard Cutter Eagle, removes the cotter pin from a replacement saltwater pump for the ship's main diesel engine, April 12, 2012. Engineers aboard a ship are responsible for maintenance and repair of the main diesel engine, two diesel generators, three boilers and two reverse osmosis units for making fresh water. U.S. Coast Guard photo by Petty Officer 1st Class Brandyn Hill.