(26 Nov 2014, 3:47 pm)GuyParkRoyal wrote Not all of the non TTX allocations are a result of VOR many of them are due to delays on the A19 resulting in a Solar, B10 or other being used to keep the service running to timetable.
The B9's will have planned work programmed work at times requiring a replacement vehicle such as a Ten branded B9. I would therfore not assume that non TTX buses indicates problems with the TTX B9's.

Not sure if that theory applies at 730am!

Allocated first thing suggests B9 unavailable, rather than wrong type spare buses fed in.