(14 May 2015, 5:55 pm)stagecoachbusdepot wrote It was on the 62 earlier - wonder what that pair were doing on Tyneside...

I assume its related to delays caused by the roadwork's which are effecting the majority of the routes in Newcastle. Sean Blair states that a "third" vehicle will be joining 16833 and 16839 in the coming days, and they are being used to cover late running buses on the 22/X63/62/63.