This morning I saw 423 and it appeared that the number on the side of the engine was ground off and replaced. When I crossed over the tracks I saw that the engine has #423 applied in all the usual spots however behind the horn above the windshield it has number 507. What is the story with this unit?
DM30AC 507 suffered an electrical cabinet failure, but unlike 503, it was saved by being converted into a DE30AC locomotive. It was renumbered to 423 and has since returned to service.