Shuffle your feet, lose your seat. Before Norfolk Southern Railroad sold their set of F units that had been dedicated to power most Office Car Specials, they were renumbered from 4270-4271 and 4275-4276 to 270-271 and 275-276 to make room on the roster for other locomotives. On Saturday, February 15, 2020, the new 4275, (AC446M, originally GE Dash 9-44CW 9096) which is a recently released Juniata rebuild, was in Enola, PA leading train Z6X.