are backwards compatible so as the better motors became available the D37, D47, D57, D67 and D77 all could be found on an F unit. Original owners Surviving examples Twelve F3s survive today at a variety of museums; ten being A units and two being B units. Metro-North Railroad still had three FP10 units in service, which are rebuilt F3s, before BL20GHs took over. When ConnDOT leased GE P40DCs from Amtrak, their usage of in revenue service has declined. Those went to the Shore Line East when the BL20GHs took over. These units were originally built for the Gulf, Mobile and Ohio railroad and rebuilt by Illinois Central to FP10 status for MBTA. Metro North originally acquired four of the units, but one was acquired by the Adirondack Scenic Railway for service out of Utica, New York. Another was sent to the Danbury Railway Museum in 2019, while the other two have since been scrapped. The Alberta Railway Museum in Edmonton, Alberta owns Canadian National F3 #9000. #9000 was the first diesel road freight locomotive ordered for a Canadian railway and one of the only six F3's to be owned by a Canadian Railway. #9000 was built in 1948 and was part of an order for six locomotives (two A-B-A sets). Steamtown National Historic Site in Scranton, Pennsylvania is home to former Bangor and Aroostook F3s 44 (owned by the Tri-State chapter of the NRHS in Morristown, New Jersey) and 46 (owned by the Anthracite Railroads Historical Society). Both engines were initially restored as Jersey Central 56 and 57, but as of 2012 have been repainted as Lackawanna 663 and 664. These engines, along with BAR 42, are the oldest "chicken wire" style F3s in existence and are used on most long distance excursions from the park. The ARHS also owns a former Boston & Maine F7B (4268B), which has been altered to resemble a F3B. It is also currently located in Scranton, and as of May 2014 has been cosmetically restored as DL&W 664B, with mechanical restoration still to come. The Montreal, Maine & Atlantic Railway, the corporate successor to BAR, owned #42, which was renumbered back to its original number, 502, when it was repainted into the original gray and yellow scheme. After the Lac-Mégantic rail disaster and the subsequent bankruptcy and liquidation of the railway, this locomotive was purchased, along with most of the rest of the