This slide deck doesn't go into enough detail and I think the Arianne 501 section is not entirely correct; if you're interested in this topic, I enjoyed reading Space Systems Failures [1].
My spouse used to work as a EE in the aerospace industry and I collected some awesome stories from her. The degree of cultural pathology there is difficult for outsiders to comprehend.
[1] http://www.amazon.com/Space-Systems-Failures-Disasters-Satel...