allotted. Operational history The class operated local services between , and on the Woodhead Line. Following the closure of Reddish depot in 1983, units had to be diesel-hauled from Longsight depot to their usual route, due to incompatibility with the available 25kV power supply. Accidents and incidents On 21 May 1970 the 22:45 Manchester Piccadilly to Hadfield was on the up fast line passing Audenshaw Junction near Guide Bridge when the middle and rear cars were diverted onto the up slow line due to the points being changed underneath the train. The middle car turned on its side as a result and was dragged for 90 yards before coming to rest against an overbridge. Two passengers were killed and 13 injured. Withdrawal In 1981, the Woodhead line was closed east of Hadfield. In December 1984, the remaining section was converted to the standard 25 kV AC overhead system and the Class 506 EMUs were withdrawn following the last run on 7 December. After their withdrawal, unit 59404-59504-59604 was set aside for preservation, but the rest were all sent to Vic Berry in Leicester for scrap; they were cut up in April 1985. They were replaced by Class 303s, which transferred from Glasgow and have themselves since been withdrawn. The Glossop line is now operated by Class 323 EMUs. Preservation One complete unit was scheduled for preservation by the West Yorkshire Transport Museum; it was based originally at Dinting Railway Museum. It then moved to the former Bradford Hammerton Street Depot and finally on to the Midland Railway - Butterley. It deteriorated severely; two cars, and most of the third, were scrapped in August 1995 by CF Booth in Rotherham. All that remains is: a severed driving end of a motor open brake second, M59404, which was preserved at the Electric Railway Museum, Warwickshire until its closure in 2017; and the cab of M59494M at The Cab Yard in Wales, intended for future display at a Welsh heritage railway. See also Glossop Line Woodhead Line Manchester-Sheffield-Wath electric railway References Further reading External links 506 Train-related introductions in 1954 1500 V DC multiple units