Originally Posted by
turbidus
I am sure it will be withheld, just like FOQA/FDM/FDA data...
Information on aerodynamic stability of the aircraft is very different in kind from those. Think about it this way:
An automobile manufacturer could properly treat information about the details of its traction control or antilock braking systems as proprietary, but there's no way it could get away with refusing to release test track data on stopping distance or rollover characteristics -- certainly not in the context of lawsuits in the wake of crashes raising questions about those characteristics.
Edit: And nothing could prevent interested third parties from conducting independent testing and releasing the results, so attempting to keep them secret in the midst of controversy could only further damage corporate credibility and public image.