Originally Posted by
robocoder
Or, in terms I've learned here: there is a hole in the cheese that should not have been there to begin with but that was carved out due to cost cutting, and another one that can never be completely removed because of the human factor. To me, these are not the same.
Good point. The cheese holes are different. A hole created by bad design sits there static, waiting for all the moving holes (crew fatigue, training, aoa failure, wx, phase of flight) to line up above it. It's always there, just waiting for us to fall into it.
In addition a "bad design" cheese hole propagates out. Every aircraft added to the fleet has the same hole, increasing the chances that we'll get a line-up event.