Thanks for the references guys. Although I didn't fit into the most people category, I do now, and having read around the subject a little I think I understand what you are talking about.
I was confused because the BKK 737 was a Classic, and the ADs you refer to are specific to the NG. As Leder says, I guess Boeing took a close look at all fuel pumps after BKK, and found particular problems with the NG.
Good stuff
