Surprising that I went to a DOWT event in Essex, only to find this video in my recommended! Also, why is 630 getting retired? Is she receiving a 1472-day inspection or overhaul?
Apologies for the late response about 630, but basically there was a rumor going around last month about 630 being permanently retired and replaced by 610 once her flue time is up. Thankfully, this rumor turned out to be false.