At 270 feet and weighing in at 1,646 tons, Coast Guard Cutter Thetis is equipped with the necessary equipment to perform law enforcement, search and rescue, homeland security and national defense missions. To stay mission ready, the ship’s equipment requires routine maintenance usually handled by the crew, but occasionally more attention is needed. Cue the Coast Guard Yard in Baltimore, Md. One of the many specialized groups working at the yard is the ordnance shop’s MK75 planned depot maintenance team.