312793 arrives at Wrabness with the 10:13 Manningtree to Harwich Town Network SouthEast service on 26 August 1991. This class of EMU was introduced in 1975 and was the last to be built with slam doors and consequently they were replaced by more modern units before their intended design life was up. The entire class (49 units) was withdrawn by 2003 and virtually all vehicles were scrapped the following year.