37197 & 37158 arrive at Knighton on 26 May 1996 with the diverted 06:49 Margam to Llanwern steel coils. This was routed via the Central Wales Line as its normal (and much shorter!) route via Cardiff was closed for engineering works. It was easy to get multiple pictures of this train, as despite the Welsh roads being unsuitable for high speed driving, the twisting nature of the line, and the fact that the train was limited to 30mph meant getting ahead of it was relatively easy.