Aircraft Accidents during Flight Phases and Causes of Airplane Crashes

3 Aircraft Accidents during Flight Phases and Causes of Airplane Crashes 

More specifically, the rough breakdowns of the percentages of accidents during 1987-1996 for the subphases were 1% (ramp/taxi), 5% (cruise), 7% (descent), 8% (climb), 10% (initial climb), 11% (initial approach), 14% (takeoff), 21% (landing), and 23% (final approach) [10,11]. Accident data for the period 1990-1999 exhibit a similar trend [10,12], 

Past experience indicates that there are many causes of airplane crashes. For example, a study of 19 major crashes (defined as one in which at least 10% of the airplane passengers are killed) of U.S. domestic jets occurring during the period 1975-1994 has identified eight different causes of these crashes [7,13]. These causes (with corresponding number of crashes in parentheses) were as follows [7,13]  

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