Airmen with the 9th Aircraft Maintenance Unit and 489th AMU place a hydraulics system pressure manifold on a B-1B Lancer aircraft during a Copper Ring exercise at Dyess Air Force Base, Texas, Sept. 13, 2021. The manifold is a component that regulates fluid flow between pumps, actuators and other components in a hydraulic system. (U.S. Air Force photo by Staff Sgt. David Owsianka)