(31 May 2014, 4:01 pm)AIG20 wrote So does this mean that 28018 - 28023 may enter service next week, since they seem to be ready?

As it had been earlier suggested that Sunderland are most likely to wait until the first batch of ten have arrived to cover service 3's PVR of 9, I didn't think to ask.
We are now up to a total of seven vehicles which means that we are currently on-track for this delivery as all ten are due to be delivered by the end of next week.

I would expect that the gas buses will enter service on service 3 from w/c June 9th, though this is mere speculation on my behalf...
28024 has already gained fleet numbers and registration plate, so should be fine to go on the road as soon as it is taxed.