In low evening sun 31601 & 31602 pass through Norton, Worcestershire with 5Z20 08:58 Kilmarnock to Laira. The train was conveying an overhauled FGW Mark III coach. The train had originally set off with a pair of HNRC class 20's but was booked an hour at Washwood Heath for a traction change where the 31's were added. 22/08/12.