Brian, I think you'll find HC is fairly conversant with the FAR/CS-29 requirements.
The relevant statement is in the opening line:
Unless such failures are extremely remote
A more pertinent question might be "what standard is used to demonstrate extreme remoteness" especially in a new design?
Heli-MGB-tech, could you delete your post? It is incorrect in every regard and is possibly one of the most mis-informed comments I've seen on this website - and that' saying something!