I know a 747-100/-200 will continue to fly in a straight line and not tumble, even with its nose torn off to the wing root.
So, which is it? The wing box blown to hell and the wings didn't fall off? The wing box blew and the NOSE of the aircraft fell off but not the wings?
7 psi blew the tail off JAL 123. 7 psi.
Even a small explosion (say 10 gallons of vaporized Kerosene) in the Center tank could make an explosion that overpresures the fuselage, causing the wingbox tank to rupture from the inside out, because that’s what it did.
Why didn’t the wings fall off? They had the Weight of the fuel and engines on them, keeping them from immediately folding up and with the fuselage pitching up from the nose falling off, it too was producing lift, so it went up with the wings (the 3000 ft “zoom climb”)
When the engines finally began to spool down a few seconds later, the plane went ballistic and began to break up completely on the way down, The wings DID come off.