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"On 17 October 2003 a Piccadilly Line train[1] derailed in a tunnel just outside the station, when the wheels of the second-to-last carriage left the tracks. There were no injuries, but there was some damage to rails and sleepers. A report from the subsequent investigation, with input from maintenance contractors Metronet, London Underground, rail unions and rail consultants, determined that the direct cause was a broken rail, and suggested that this resulted from outdated specifications for track inspection, resourcing and equipment.
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