The 1982 Washington Metro train derailment was an incident involving a single Orange Line Washington Metro train during the afternoon rush hour of January 13, 1982, in Downtown Washington, D.C. in the United States. The train derailed as it was being backed up from an improperly closed rail switch between the Federal Triangle and Smithsonian stations, and caused the deaths of three passengers. Several survivors were trapped for hours, and 25 were injured. The incident was the first resulting in a fatality involving the Metro system and remained as the deadliest incident occurring in the system until the June 22, 2009 collision that resulted in nine fatalities.