Federal Railroad Administration, Office of Safety Headquarters Assigned Accident Investigation Report HQ-2007-55, Amtrak/Union Pacific (ATK/UP), Martinez, California, October 1, 2007

摘要

On October 1, 2007 at approximately 5:35 p.m. PDT, eastward Amtrak Capitol Corridor Passenger Train ATK 540-01 operating in a cab forward configuration on Main Track No. 1 of the Union Pacific (UP) Martinez Subdivision, derailed its locomotive at milepost 30.0. The derailed locomotive subsequently sideswiped the lead locomotive of westward UP Freight Train YOZ55-01, which was stationary on the west end of the siding at UP Ozol Yard, Martinez, California. This occurred as a result of the Amtrak train striking a center car cushioning device filler block that had dropped between the rails in the track from freight car UP 463046, which had been set out as a bad order car earlier from UP Train YOZ55-01. Locomotive ATK 172 derailed in the upright position and UP lead locomotive UP 652 was damaged but did not derail. The train came to rest just east of control point RV030, approximately 1,125 feet beyond the point of contact. Their were no injuries to either crews and no reported injuries to the 152 Amtrak Passenger Train passengers. Damage was estimated at: ATK, $65,728, equipment; UP, $10,000, equipment, $496,269, track, signals and structures. Weather at the time of the accident was daylight and clear, with a temperature of 75 degrees Fahrenheit. The probable cause of the accident was an object on or fouling the track.