Using Heinrich’s (Bird’s) Pyramid of Adverse Events to Assess the Level of Safety in an Airline

Abstract One of the key concepts in matters flight safety is that special (abnormal) situations, with airworthiness regulation and certification aviation equipment being based on this concept. At same time, one forced to admit today there no explicit interpretation standardized traits nor are they not fully elucidated scientific literature. In article we propose a pyramid-based approach interpreting in-flight which allows for risk assessment using matrices, but instead relying only probabilistic characteristics occurrence events. Using presence causal relationship between layers pyramid, an algorithm transition varying degrees danger situations. This can be used develop on-board device informs pilot about dynamics transitions from situation another, representing each emergency certain color.