[Chode]

ummm... if it's such a problem, WHY hasn't AirForce-1 had the modifications made???

[Freedom'sWorthIt]

Exactly. And how many jets have been falling out of the sky because of the center fuel tank problem since 1996?

[Perdogg]

wrong!

http://www.globalsecurity.org/military/systems/aircraft/vc-25.htm

"The second Air Force One aircraft was compliant with the FAA mandate when it rolled out of PDM later in 2001. In the wake of the TWA Flight 800 explosion, the FAA and the National Transportation Safety Board issued an Airworthiness Directive requiring anyone who maintains a 747 install a new FQIS with safety provisions that resulted from the TWA 800 investigation."