56311 is now propelling 6Z48, its loaded spoil train from Thorney Mill, through the unloading gantry at Calvert, alongside 66951 at the head of 6M23, the Cricklewood empty "binliner" train, due to depart at 19:20. Once the wagon immediately next to 56311 was in position alongside the mechanical grab unloading commenced immediately. 17:37, Monday 3rd June 2013. Digital Image No. GMPI15955.