Pacific Ocean (Oct. 7, 2004) - Air Department personnel conduct an aircraft emergency landing barricade-rigging exercise on the flight deck aboard the aircraft carrier USS Nimitz (CVN 68). The emergency barricade is used in the event an aircraft cannot make a normal arrested landing. Nimitz is currently conducting Nuclear Power Mobile Training Team II (NPMTT II) exercises off the coast of southern California. U.S. Navy photo by Photographer's Mate 3rd Class Angel G. Hilbrands (RELEASED)