Derailment of 6H53, 14.42 hrs Earle's siding/trafford park in Disley tunnel on 2nd May 1973 (TM-FT-021)

The leading wheelset of the last vehicle in the above train (Presflo B888694) which consisted of loco 255 and sixteen loaded Presflo wagons, all vacuum fitted, became derailed at 174 miles 797 yds on the Down Line, approximately 388 m (425 yds) inside Disley Tunnel, and ran derailed to the...