DULUTH, Minn. — The National Transportation Safety Board has released its final report involving a Cirrus plane crash in Duluth that killed one of the aircraft company’s longtime employees.
David Rathbun, 52, of Hermantown was the only person on board the 2016 SR-22 when it nose-dived into the frozen St. Louis River near the Bong Bridge around 4 p.m. Feb. 24, 2023.
Rathbun was the only person on board…