| Newly-remanufactured AC4400CWM locomotives CSX 7274, Union Pacific 7252, 7245 and 7262 were on the Wabtec test track near Fort Worth, Texas. CSX 7274 had been built in June 1994 as CSX 9100 and was the very first production model AC4400CW. It was subsequently renumbered CSX 1 and then second 173 before being upgraded. |