01399nab a2200181 4500 20260520003916.0 260224s2009 xxu Mackenzie, Cheryl 40689 Investigating beyond the human machinery A closer look at accident causation in high hazard industries mar. 2009 2009-03-31 ; 2009-03-31 6 p. ; 84-89 Human error is not a cause of an accident - it's a symptom of underlying problems. Attempting to modify operator behavior to prevent human error will not rectify those underlying problems nor will it prevent major catastrophic accidents. This article will provide evidence to support why an organization's safety focus should not be solely on behavior-based safety. It will demonstrate how an equal emphasis and focus needs to be placed on the safety systems of the organization, as these aspects of safety provide a more accurate assessment of a company's true safety state. By taking another look at the US Chemical Safety Board's completed investigations, this article will demonstrate how one must go beyond the actions and decisions of frontline operators to truly understand the causes of any given incident and to safeguard against major accident hazards. 1 Process safety progress 28 ARTICULO 169399 169399 0 0 0 0 237218 BAAB BAAB 2026-03-05 200044200 0 200044200 2026-03-05 15:11:36 2026-03-05 ARTICULO