Unloading finished, 59205 detaches from the front of its train at Calvert, and prepares to run round, prior to forming the 6A58 10:16 Calvert to Northolt Binliner empties on 21 May 2013. Behind it, 56091 will still have to wait a while for its train to be unloaded, before it too can depart with the 6Z91 10:53 Calvert to Didcot Power Station flyash empties.