South Korea's authorities investigating last month's Jeju Air plane crash have submitted a preliminary accident report to the U.N. aviation agency and to the authorities of the United States, France and Thailand,

A preliminary report on last month’s Jeju Air plane crash on Monday confirmed that birds struck the passenger jet's engines but cautioned that investigators were still probing the cause of the

The first report on last month’s Jeju Air crash in South Korea confirmed traces of bird strikes in the plane's engines, though officials haven’t determined the cause of the accident that killed all but two of the 181 people on board.