On November 10, 2004, about 9:10 a.m., Union Pacific Railroad (UP) train YEY55-10 collided with a track car mover and four refrigerated boxcars that were parked at Crystal Cold Storage track in San Antonio, Texas. The engineer lost radio communication with the conductor, who was controlling the train movement, and failed to stop the train in time to avoid the collision. An employee of a rental car company was killed as one of the parked cars was shoved over a pair of wheel stops 2 and into the Crystal Cold Storage maintenance building. A Crystal Cold Storage employee was injured while he was unloading frozen food from one of the parked boxcars. Damages totaled $308,637.