Will likely be another short term decline in availability in the coming days with sets coming up for exams and the same backlog that happened a few weeks back.
Current set status is:
HD01+67029- Spare at Canton with 67029, loco swap for 67008 on Sunday due to 029 having limited mileage before due a bogie overhaul.
HD02+67008- Will work 1W96 tonight then enter temporary storage at Holyhead, 67008 will come off the set to go light to Crewe tomorrow to go onto HD01.
HD03+67015- On A exam at Crewe
HD04+67025- In service as the only 4 car now being used. As it was scheduled to be the first 5 car but missed out its now at the back of the queue and is fresh off A exam.
HD05+67006- At Crewe, still on exam and still formed 4 car but will be reformed before entering service.
HD06+67010- Finishes Crewe tonight and will then stop for B exam and 5 car
HD07+ 67022- In service.
Should be 3 diagrams on Saturday (both Cardiff starts and 1 from Crewe, 1 on Sunday-the Cardiff start, 2 and a half diagrams on Monday (1V31, 1V91, 1W55, 1V42, 1W23 subbed with a unit on Monday). HD03 should then re-enter service on Tuesday enabling 4 diagrams again but with only 4 available sets that does require 100% availability of those.