After having arrived at Old Dalby (Asfordby Depot) on 28 August 2015 with the 7X23 09:33 Derby Adtranz Litchurch Lane to Old Dalby new London Underground S-stock, 20107 & 20096 and the barrier wagon detach, and move out of the way, so that 20311 & 30314 can propel the stock to the far end of the depot.