Ten years after Malaysia Airlines flight MH370 disappeared with 239 passengers and crew on board on 8 March 2014, this documentary looks at whether new radio technology may finally help locate the missing aircraft and asks what lessons can be learned to make aviation safer. 8 March 2014. A Boeing 777 carrying 239 passengers and crew from Kuala Lumpur to Beijing disappeared from air traffic controllers’ radar. It sent no emergency distress calls. The aircraft was never heard from again, but startling evidence soon emerged that Flight MH370 stayed in the air for a further seven hours. What could have caused the plane to divert so drastically off course? Was it struck by a catastrophic technical failure? Or was it hijacked – and if so, who by?