BNSF Railway donated a historic SD70MAC to the Illinois Railway Museum. Locomotive 9400 was built in 1993 and is notable for being the first production locomotive (i.e., non-demonstrator) to feature modern AC traction, making it the precursor to thousands of units with this groundbreaking technology. BNSF made the donation earlier this summer, and IRM announced it on July 31. IRM plans to eventually restore the unit to its as-delivered appearance, Burlington Northern’s green and cream “Executive” livery from the early 1990s. Following testing of freight diesels equipped with AC traction motors in the early 1990s, BN ordered the first production...