66169 passes Challow on 8 February 2020 with the 6B33 Theale to Robeston Murco oil empties. The train was booked to leave Theale at 14:17, put actually left 112 minutes early at 12:25. The previous day's loaded train had left Robeston 103 minutes late, and arrived at Theale 221 minutes behind time. The loco went back to Wales light engine, and this loco was dispatched light engine to pick up the empties the next day. Obviously a Class 60 is required for a loaded train, but a 'Shed' was sufficient for the empties!