Petty Officer 1st Class Charles Cisneros performs diagnostic checks on the mission systems of an MH-60R Sea Hawk helicopter assigned to Helicopter Maritime Strike Squadron 77 on the flight deck of the aircraft carrier USS Abraham Lincoln (CVN 72) underway in Arabian Sea on March 10, 2012. The Abraham Lincoln is deployed to the U.S. 5th Fleet area of responsibility conducting maritime security operations, theater security cooperation efforts and support missions as part of Operation Enduring Freedom.