Originally Posted by
Bend alot
I would expect max diff will have been tested prior to wing loading. If that is true it is not a locking mechanism failure, but stuff is bending/breaking in the structure when wing loading is applied.
No, that isn't necessarily the case, surely?. Tension applied for a wing loading text could just as easily distort part of any door locking mechanism (load transmitted through the airframe, of course) such that the locking mechanism gives way, rather than the airframe.