(21 Jan 2020, 7:17 am)EL1TE wrote 6084 appears to have transferred to Deptford and is on 56 according to bustimes.org.
That's correct, and 6099 has hence transferred to Percy Main as a result. 5230 has also transferred to Riverside to replace 5231, now withdrawn following MOT expiry.
Few other movements which took place last week:
https://www.gonortheast.co.uk/about/enthusiast-area/