Jack Cashill has done quite a lot of work on this issue.
Yes he has. I was thinking about Donaldson though.
Donaldson was a credible guy (not that Cashill isn’t), but Donaldson had a background in military aviation crash investigations. He also had good a good relationship with pilots and industry insiders.
http://www.freerepublic.com/focus/news/3033134/posts?page=9#9