U.S. Navy Lt. j.g. Nick Horton, left, and Lt. Clayton Hunt, naval aviators assigned to Patrol Squadron (VP) 16, perform preflight checks in the flight station of a P-8A Poseidon aircraft before a mission to assist in search and recovery operations for Malaysia Airlines Flight 370 in Perth, Australia, April 1, 2014. U.S. Navy ships and aircraft were dispatched to assist a multinational search for Malaysia Airlines Flight 370, which disappeared March 8, 2014, over the Gulf of Thailand with 239 people aboard.