DCR 56312 continues to work the Didcot Power Station to Calvert fly ash train, 6Z92, and the return empties from Calvert, 6Z91. This is 6Z91, 10:55 from Calvert, returning to Didcot PS, unfortunately the loaded train in the opposite direction runs in the hours of darkness. The train has just emerged from Wolvercote Tunnel, en route to Oxford at 12:16 on Wednesday 14th November 2012. Digital Image No. GMPI12895.