[5] The 31 following units were assembled at the Alstom Transport plant in Hornell, New York in 2004,[6] and were produced through early 2006.

It has an Intelligent Display Unit (IDU) based on Bombardier Transportation technology from which an engineer or technician can view data or download events and faults from the previous weeks or months.

The technician can do a host of tests from the IDU to determine if a specific system is operating correctly.

For example, if the on-board computer detects too little oil in the system, it will shut down the engine to avoid damage.

[8] Of the 33 units, 23 are slated for replacement, while the remaining 10 will receive a light overhaul for continued service.