(05 Nov 2014, 8:33 am)palatine3833 wrote The GNE Hybrids were bought for the 21 service - yet are used nightly on the X21 to Bishop Auckland?

Think this is slightly different, as the nightly/Sunday X21s are formed from 21 journeys Newcastle - Durham.

Arriva's allocations are purely to allow buses to leave Blyth on time, and are far more excessive than Go North East's planned allocations. As far as I know, the Hybrids have never appeared off route...