43272 brings up the rear of the 1Z23 07:51 Bristol Kingsland Road to Derby RTC Network Rail test train at Whitehill (between Combe and Finstock) on 4 November 2021. 43251 is leading. This was running late, but had the 1P28 11:55 Great Malvern to Paddington GWR service not been cancelled, it would have been even later.