Series of contributing factors leading to an undesired outcome
This article is about chain of events in accident analysis. For other uses, see Chain of events.
In accident analysis, a chain of events (or error chain) consists of the contributing factors leading to an undesired outcome.[1][2][3][4][5][6]
Aviation
In aviation accidents and incidents, these contributing actions typically stem from human factor-related mistakes and pilot error, rather than mechanical failure.[1][7] A study conducted by Boeing found that 55% of airline accidents between 1959 and 2005 were caused by such human related factors, while only 17% of accidents were caused by mechanical issues with the aircraft.[8]
The Tenerife airport disaster, the worst accident in aviation history, is a prime example of an accident in which a chain of events and errors can be identified leading up to the crash.[9] Pilot error, communications problems, fog, and airfield congestion (due to a bomb threat and explosion at another airport) all contributed to this catastrophe.[9]