56091 brings some welcome classic traction relief from the constant monotonous diet of 66s on Thames Valley freight. It is passing South Moreton on 19 August 2013 with the 6Z84 10:53 Calvert to Willesden Euro Terminal spoil empties. Unfortunately, whilst the aforesaid 66s passed in good light, when it came time for some more interesting motive power the sun had disappeared!