A lot of the outwards bending is visible on both sides of the rudder/rear fuselage wreckage. My post 173 has a link to a picture. I also postulated that pressure hull failure at the rear bulkhead could be the cause of flight control difficulties.
Interesting in the picture I have linked, you can see a line along which the horizontal stab failed along the right hand side... It's quite a deep gouge.
See here:
http://www.pprune.org/9164485-post173.html