Originally Posted by
Oro-o
I was just about to ask about that. I had marked up the photo to highlight it. It would not have happened on impact in soft water-logged ground; it had to have been pre-existing or during separation.
Red indicators for highlighting.
If the door was freed from the 12 stop pegs the roller pin might still be retained within the top guide. If the bottom moved out under the influence of cabin pressure then damage to the top consistent with the images could occur. The very top lip would be forced inboard, pivoting round the guide, causing the separation of the skin from the frame shown until eventually the guide failed. Then both the top and bottom of the door would be free to open.
In this scenario the door's upward translation would be interrupted by being jammed between the outward force on the guide roller and the inward force on the top edge of the door on the frame.