This section covers the AC preservation period from 2010 through to 2019. The year-by-year sub-sections cover our own history in more detail, plus other AC heritage developments outside the Group. Summaries for all pages can be found below. The sub-sections are grouped for convenience.
| 2010 | 86101 and 87002 perform Royal Mail standby work for GBRf 86101 and 87002 move "home base" to Willesden TMD 85101 electrical restoration begins 86101 and 87002 perform winter icebreaker work on WCML |
| 2011 | 81002 repainted into Rail Blue 86213 visits Willesden TMD for repainting 86401 moves to LNWR Crewe to receive bogies from 86424 86101 and 87002 perform winter icebreaker work on WCML |
| 2012 | 86401 returns to Willesden TMD 86101 and 87002 perform winter icebreaker work on WCML |
| 2013 | 86213 moved from Willesden TMD to Barrow Hill 86101 and 87002 perform winter icebreaker work on WCML |
| 2014 | 86213 moved from Barrow Hill to Willesden TMD 87002 performs winter icebreaker work on WCML |
| 2015 | 86101 and 87002 perform winter icebreaker work on WCML 86401 moved to Leicester TMD to be prepared for mainline running 86101, 86401 & 87002 repainted into Caledonian Sleeper livery 86101 & 87002 start work on Caledonian Sleeper ECS duties 86401 renamed "Mons Meg" and moved back to Willesden TMD 86401 starts mainline service on Caledonian Sleeper duties |
| 2016 | 86101, 86401 & 87002 continue work on Caledonian Sleeper ECS duties Significant technical restoration work carried out on 89001 |
| 2017 | 86101, 86401 & 87002 continue work on Caledonian Sleeper ECS duties Significant technical restoration work carried out on 89001 |
| 2018 | 86101, 86401 & 87002 continue work on Caledonian Sleeper ECS duties Significant technical restoration work carried out on 89001 |
| 2019 | 86101, 86401 & 87002 work on Caledonian Sleeper ECS duties finishes Significant technical restoration work carried out on 89001 |