Excellent article on the human factors in this crash
Earlier in this thread is a reference to an article in Vanity Fair written by William Langewiesche about this crash. It describes chillingly how multiple human factors lined the holes up in the cheese, and an accident equivalent to two arrows hitting each other in flight took place. Vanity Fair magazine is not readily accessible but the article is now reproduced in a new book by Langewiesche entitled Aloft which is published by Penguin. Folks may wish to read it.
PS I have no interest in either publishing or selling!