Sunday engineering work closed the main lines between Reading and London on 14 June 1987, so all trains were using the relief lines. 43142 St. Mary's Hospital Paddington leads the 1A20 09:20 Bristol Temple Meads to Paddington service along the up relief line at Shottesbrooke. 43142 only carried the St. Mary's Hospital Paddington name for just over two years, with the standard plates seen here being replaced by the cheap looking reflective style, which were then removed after just a few weeks!