Just watched an interesting Documentary on Al Jazeera's 'People & Power' show, the episode was titled 'On a Wing and a Prayer'.
Details here:
http://english.aljazeera.net/video/a...520679770.html
The show brings into question the airworthiness of 737NGs manufactured between 1996 - 2004, based on the proposals that were put forth by Boeing to the FAA regarding the manufacturing process to be used in the manufacturing of key structural parts. The certification of a higher gross weight was based upon this new manufacturing process.
The documentary shows that the actual manufacturing process used didn't coincide with the proposal that was presented to the FAA, and upon which the aircraft was certified - hence bringing into question the structural integrity of the aircraft. It also implicates Boeing and the FAA of a cover-up regarding the issue.
Former Boeing employees who take part in this documentary, and who are now suing the company, cite recent 737NG accidents in Amsterdam, Jamaica, and Colombia, in which the aircraft broke up identically in contact with the ground as further evidence to their concerns.
Worth a watch if you can find it on the net.