The objective of this research has been to understand more about aviation accidents in which the actions of the flight crew members (hereafter FCMs) were the main cause. A new con-struct has been developed known as substandard flight crew performance (hereafter SFP) to provide framework and context for this research. To support this construct, the most recurrent examples of SFP were identified from analysis of decades of investigations and reports. Based upon the frequency of occurrence, the potential contribution to aviation safety, and the feasibility of conducting meaningful research, three diverse but interconnected factors have been identified. The first of these related to the recurrent influence of verbal phenomena in aviation accidents, in particular, distracting conversations and unclear communications. [Continues.
