I had been monitoring the progress of this unit since it left Allerton depot on Merseyside over an hour early. It had progressively been gaining time and by the time it was approaching its journey's end on the up fast line at Roade it was considerably over two hours early! 313225 was heading to the works for a 'light' overhaul replacing 323233 that had left earlier in the morning. See......
https://www.ontheupfast.com/p/21936chg/29043767004/x323233-09-48-wolverton-centre-sidings. Notice, that according to its destination screen, its last journey (apart from running empty to Allerton depot) was a Manchester Piccadilly to Crewe via Manchester Airport service.