Human Factors Analysis and Classification System-HFACS
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2000-02-01
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Abstract:Human error has been implicated in 70 to 80% of all civil and military aviation accidents. Yet, most accident
reporting systems are not designed around any theoretical framework of human error. As a result, most
accident databases are not conducive to a traditional human error analysis, making the identification of
intervention strategies onerous. What is required is a general human error framework around which new
investigative methods can be designed and existing accident databases restructured. Indeed, a comprehensive
human factors analysis and classification system (HFACS) has recently been developed to meet those needs.
Specifically, the HFACS framework has been used within the military, commercial, and general aviation sectors
to systematically examine underlying human causal factors and to improve aviation accident investigations.
This paper describes the development and theoretical underpinnings of HFACS in the hope that it will help
safety professionals reduce the aviation accident rate through systematic, data-driven investment strategies and
objective evaluation of intervention programs.
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