The Western Region, having taken over the Somerset & Dorset line north of Templecombe in 1958, adopted a policy of re-routing the North-South through trains away from the Bath-Bournemouth route.
As a result, the demand for passenger locomotives at Bath Green Park fell away and the more modern classes were moved elsewhere. Older classes went to the scrapyard.
At first, 73050 was retained by the Western Region and found herself briefly at Llanelli in West Wales and then started a 2-year spell at Shrewsbury.