Lite Engine In The Dark. Quite a change from the normal parade of stainles steel cars was a chance encounter with Metropolitan Transportation Authority - MTA NYCT Subway R-47 70 (GE 45T, 1974-75) at the 181 Street Station in Manhattan on the morning of Thursday, March 3, 2022. The NYC Subway's robust fleet of more than 90 diesels move around the system at all hours, sometimes with work trains or work equipment or a train that has a mechanical problem, but Work Train 37 was a single engine transfer.