D5401, Type 2, Class 27 diesel-electric
Photographed at the Great Central Railway sidings, Loughborough, on 16 March 2011.
See picture #5945
for more details of this locomotive.
D5401 (27056,27112) has been running continously pretty much since it was preserved in early 1988, and eventually it needed main generator repairs, which were done in the winter of 2010/11.
Picture added on 28 March 2011 at 09:26