FILE - In this March 31, 2014, photo, an observer looks out a window on a Royal New Zealand P3 Orion while searching for missing Malaysia Airlines Flight 370 in Perth, Australia. Malaysian Prime Minister Najib Razak announced on Thursday, Aug. 6, 2015, that a wing piece that washed up on Reunion Island last week is from the missing Malaysia Airlines Flight 370. However, French, U.S. and Australian authorities stopped short of full confirmation, frustrating relatives with mixed messages. (AP Photo/Rob Griffith, File)