(15 Dec 2015, 10:18 am)mrnut85 wrote That is now correct as 19644 has returned from Scotland. If 19644 had still been away, then there would have still been a need for 34401 to be used as a spare.

I know for a FACT it was prepared for service and was available for use in service while 19644 was away but as I have previously said, 19644 has returned so there is no longer a need for the extra spare.