Errors in Aviation Decision making, bad decisions or bad luck!
Humans as the users of machines must be involved in the design, development . There has to be effective implementation of the change management process in SMS so that changes and associated risks are identified and highlighted.
Landing on an unstable approach or failure to go around when runway is not in sight is a weakness that humans have. Humans deal with tasks sequentially. The failure to switch tasks even though the second task is more important is known as Cognitive Lockup. Read my view on this aspect which is a factor in unstable approach and runway excursions.
Inattentional blindness, Cognitive bias and poor crew training standards lead to the near world worst air disaster.
How could two pilots execute an approach on the taxiway with 4 aircrafts with almost 1000 passengers in it. They missed the collision by 60 feet.