To: RW-1
I'm surprised that you agreed.
Quote:
"But I think the other inspection requirement was more for cracks at the root that they determined to be from high flapping and coning due to flights over gross weight, etc. didn't it?"
This may be true but for whatever reason the blades coned/flapped it is this action that causes the lead and lag. Higher gross weights can enter into it and make the situation worse by placing the blades under higher stress levels relative to lower gross weights.
