Derailment of HAA wagon at Drax on 18/10/94 (RR-DYN-94-007)

One wagon of a train of empty Merry-go-Round coal wagons became derailed as the train was leaving Drax Power Station. The wagon ran derailed for some three miles before the train was stopped by the signalman at the exit signal from the branch onto the main line. As the cause...