I know I'm bringing back a pretty dead thread but I think it will be a good place to record our findings, queries and anything we track on rail replacements operated by GNE, I'll start and it looks like Chester-Le-Street based B11RTs 7136 & 7137 are allocated to rail replacement duties according to bus times (both tracking on route 999 which is normally used for tracking dead runs however they are recorded tracking along the rail replacement route). I'll keep everyone updated as I'll be heading out and having a see for myself what GNE are using. 7110 from Deptford has also been out today from the first journey on the rail replacement.