(CNN)The disappearance of Flight MS804 en route from Paris to Cairo on Thursday is the latest on a long list of air incidents over the past three years.
March 24, 2015 - Germanwings Flight 9525 crashed into the French Alps after taking off from Barcelona, Spain, en route to Dusseldorf, Germany. All 150 people on board were killed. Officials concluded that co-pilot Andreas Lubitz deliberately crashed the plane after locking the pilot out of the cockpit. A later investigation revealed that he had suffered from depression in the past.