RCA (root cause analysis) of plane crash

In this screen shot of Southbeach Modeller, a root cause map, with 'evidence' hexagons, shows the sequence of events leading to a plane crash. The MyCreativity rules for the RCA tool "5x5Whys" is being used to generate questions in the lower panel. 

The rules used are available for download here and a more detailed image of the model here.