160412-N-GD109-046 SAN DIEGO (April 12, 2016) Interior Communications Electrician Seaman Shannon O’Sullivan attends training during an Enlisted Surface Warfare Specialist (ESWS) qualification rodeo on board the aircraft carrier USS Carl Vinson (CVN 70). Carl Vinson is currently pierside in its homeport of San Diego. (U.S. Navy photo by Mass Communication Specialist 3rd Class Zackary Alan Landers/Released)