Curious one this, so hang with me.

What is normally a Classic/TGM coach scholars service between Bournmoor and St Leonards Durham is now being worked by what I presume is an ex-Arriva decker (still has paintwork, but no lettering or fleet numbers) S649 HCU.

I havent seen anything to see Classic/TGM have given up the route, so can only assume they have picked up some stock in Arriva fleet clearances.