The Fatal Flaws That Cause Shocking Plane Crashes | Mayday: Science of Disaster | Wonder

Some of the worst aviation disasters in history like Japan Airlines Flight 123 and Swissair Flight 111 were caused by fatal flaws that the pilots had no hope of overcoming to steer the plane to safety. Seemingly insignificant design features or shoddy repair work doomed these flights and their passengers from the start. Subscribe to WONDER to watch more documentaries: This special looked at accidents caused by seemingly minor defects or errors.