I don’t understand your point. He did it correctly & that caused the crash?
He thought he did it “correctly” by disobeying the explicit instructions to install the bolts “upside down” (he believed).
No, the bolt went in from the bottom, “upside down” from his perspective. He was certain bolts NEVER went in upside down. He was wrong. The design specifically called for the bolt to go in a specific way. The tolerances were very tight.
He ignored the written instructions and put in the way he “knew” it went.