Are you treating her nicely? How fast are you on the control imputs, you have to be gentle with a bird like this as robban75 described, be easy on the stick and don't over-G her, if you could get us a track of your wings falling off that'd be greatly appreciated, and alternatively you can watch yourself in the F2 view and look for the G-indication in the bottom bar at the moment your wings snap off.
Safe flying!!