(06 Apr 2017, 9:00 am)omnicity4659 wrote 7506 was returned to Ashington on Sunday morning (I was only notified of its use there the night before), I've asked earlier this week why it was down there and it was at DiagTest, but Durham then decided to use it...
At present all of 7501-9, 7518 and 7522-8 are at Ashington.
Durham did use it for staff transport only though. It wasn't used in service, due to the lack of a DERIC controller
