Following the completion of its overhaul at Crewe it was returned to service on the mainline alongside visiting heritage railways around the UK, during its mainline career it has visited many places that none of the K4's visited during their working careers for the LNER and BR. Places it has visited in recent years include: Carlisle, Barrow Hill, Redmire, York, Manchester, Whitby & Blaenau Ffestiniog. It even proved popular working railtours up the "Conwy Valley Line" from Llandudno Junction to Blaenau Ffestiniog, the routes gradient being 1 in 47 heading towards Blaenau.