U.S. Navy Aviation Support Equipment Technician 3rd Class William Weitzel performs maintenance on a hydraulic processing unit in the hangar bay of the aircraft carrier USS Harry S. Truman (CVN 75) in the Gulf of Oman Jan. 2, 2014. The Harry S. Truman was underway in the U.S. 5th Fleet area of responsibility conducting maritime security operations, theater security cooperation efforts and missions supporting Operation Enduring Freedom.