50026 Indomitable passes Aynho Junction on 28 April 1990 with the 1M20 09:15 Paddington to Manchester Piccadilly InterCity service. This was one of the last diagrams taking a Class 50 to Birmingham. The loco would later return with the 1V96 11:18 York to Paddington (taking over at Birmingham). The rest of the day's diagram was: 1F52 17:42 Paddington to Oxford, 1F81 19:00 Oxford to Paddington, and 1F80 21:10 Paddington to Oxford.