PORT HUENEME, Calif. (Aug. 31, 2022) Hull Maintenance Technician 2nd Class Marco Perez, left, and Gas Turbine Systems Technician (Electrical) 1st Class Justin Moriarty of the Navy’s Surge Maintenance program inspect a flange with a leaky gasket in the state room aboard the Self Defense Test Ship while underway off the coast of Port Hueneme, California, during the Repair Technology Exercise, or REPTX. Two additive manufacturing companies participating in REPTX — SPEE3D and Craitor Inc. — later 3D-printed parts that could be used to replace the flange assembly. The Self Defense Test Ship is an asset of Naval Surface Warfare Center, Port Hueneme Division. (U.S. Navy photo by Eric Parsons)