Originally Posted by
The Sultan
The most disturbing thing to me is that the span location of the blade failure on the Canada accident is no where near the span location of the suspect failure on the New York accident (post 259, this thread). This indicates two separate root causes. It is interesting that both aircraft were operated in roles known for high GAG cycle rates.
That's the thing with composite material.
Hard to identify weak points unless they present, and when they do tends to be sudden.
Still leaning towards harmonic feedback into Nodal Beam system though.
Previous posts I have made will explain thinking.