Fireman Mason Alderman, an engineer aboard USCGC Eagle (WIX 327), changes the reverse osmosis filter used for making water, July 17, 2023, while underway in the Atlantic Ocean. Engineers aboard the Eagle are knowledgeable in all areas of machinery operation and maintenance from internal engines to environmental support systems, hydraulics, basic electricity and areas of hazardous material recovery and control. (U.S. Coast Guard photo by Petty Officer 3rd Class Carmen Caver)