In the past, the NTSB has, from time to time, come under criticism for being too quick to blame accidents on pilot error. Every so often, though, investigators come up with a solid case for placing the probable cause squarely and firmly in the lap of the pilot.
One such accident involved a Canadian-registration Cessna 340A that was on an instrument approach at night, in instrument conditions, to St. Clair County International Airport (KPHN) in Port Huron, Michigan, on Sept. 5, 2018. The pilot, who was the only person on board, was killed. The airplane, owned by a corporation, was being operated as a Part 91 business flight. It had taken off from St. Thomas Municipal Airport in St. Thomas, Ontario, Canada.