In an unusual turn of events, the CNJ heritage unit saw service on the former Jersey Central main line, now NJ Transit's Raritan Valley Line, for a week or so in early September 2023. This was unusual because NJ Transit's GP40PH-2 fleet is rarely assigned to revenue operations on the RVL for various reasons. Whether it was due to an equipment shortage or someone feeling nostalgic, it was good to see 4109 on home rails in the same service for which it was built 55 years earlier. The train is accelerating out of Bound Brook station during the evening rush hour. The former CNJ station can be seen in the distance. The eastbound waiting room and platform are still undergoing reconstruction. I'm sure commuters will appreciate having a warm place to wait for their train to the city during winter months.