Not Ranked
I'm no metalurgist, but I've seen failures like that in aircraft parts. The just flat assed failed. It looks like the sheer load exceeded the capacity of the material. That means that either the heat treat was missed or insufficient or that the forging alloy was wrong. I'd be more inclined to look at the heat treat.
At least I'm glad you weren't hurt..
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Dan in Arizona
CCX3209
"It's a great car and I love it, but it doesn't do 'SLOW' very well."
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