54365 & 51175 pass Sleaford West Junction on 24 August 1991 with the late running 10:11 Nottingham to Skegness service. These two vehicles only spent a very short time as Cambridge Depot's set 61, before being split up and migrating into set 101661 (54365) & 101658 (51175), both of which then received Regional Railways livery. Although only allocated to Cambridge for a short time, the depot have added their CA sticker to the centre windscreen, just above the set number.