On March 8, 2014, Malaysia Airlines Flight MH370 vanished from civilian radar during a routine flight from Kuala Lumpur to Beijing with 239 people aboard. Its communications systems and transponder were systematically disabled before the Boeing 777 deviated drastically from its intended path, turning west and flying on for several more hours. Subsequent analysis of automated satellite pings indicated the aircraft continued its journey south over the Indian Ocean until its fuel was likely exhausted. Despite one of the most extensive and expensive search operations in history and the discovery of a few confirmed pieces of debris on distant coastlines, the plane's main wreckage has never been located, leaving the reason for its disappearance and the ultimate fate of its passengers and crew completely unknown.