1455/7 on 17 (1454 out all night), 1420 on 17a
1571 appears to have been on 62/62a/64a/S2 - it arrived in Middlesbrough at 1750 off a 62 to work the 1805 62a to New Marske (which I believe terminates there)
RE: Arriva North East: Rare & Odd Workings - November 2016