Air France Flight 370 plunged into southern Atlantic Ocean killing all 228 people in 2009 . Investigators have released a report on what they believe caused the crash . They fixate on it and forget the autopilot has tripped . ` Tests on instruments with air speed and pressure cited as one factor . Discovery : Search for wreck ` ` unprecedented in terms of depth and sub - sea terrain ''
Air France Flight 370 plunged into southern Atlantic Ocean killing all 228 people in 2009 . Investigators have released a report on what they believe caused the crash . Tests on instruments with air speed and pressure cited as one factor . Discovery : Search for wreck ` ` unprecedented in terms of depth and sub - sea terrain ''