Thanks for that. You learn something new every day! Wouldn't be a scoop to be able to get a photo of a pair of 73s trundling through one of the Liverpool underground stations topping-and-tailing the test train? Another thought that occurred to me was that it might have been involved in hauling the new 777s from Dollands Moor.
I think that has generally been 66s with barrier vehicles. I always regret not getting more pictures of the handfull of 73s when they were based up here on Merseyrail. I always liked the box profile of them and it was something a bit different.
It should have been road learning Wirral lines but no trip cock fitted so no access into the tunnels in normal traffic. Only managed to do Chester to Birkenhead Central & Ellesmere Port branch all week. When speaking with the driver at Rock Ferry they advised they had been given dispensation the week before but signaller not aware. After 20 minutes at Rock Ferry it returned to Warrington Bank Quay as still refused access to the tunnels.
