“ Duncan had given the jet’s primary captain a list of “experienced test pilots, for hire, to perform the post-maintenance stall test flight”, says the NTSB. “After being unable to coordinate the stall test flight with a test pilot, the flight crew elected to perform the post-maintenance stall test themselves.”
I don’t know how common this is,but in this case it was obviously a bad decision.
They choose poorly...
RIP to them.