Changes

|image = GWR C77 TK 1086 at BridgnorthGWR_1086_20200912.jpg|caption = GWR 1086 Full Third, 2020 (corridor side)

|years2 = 1973|events2 = Entered service

They The four carriages were built at Swindon to Diagram C77 Lot 1593 , with 1086 entering service in March 1938.<ref>[[Bibliography#Other References|Longworth (2018)]] p.55.</ref>

1086 continued in passenger service in the BR Western region until April 1965, when it withdrawn and transferred into [[Carriage and Wagon numbering# Internal User vehicles|Internal User stock]] as number 079154. It then formed part of the GWR's 9-coach '''Swindon test train'''which was used for load testing of diesel locomotives, further details the full list of which may be found under coaches being: {| class="wikitable"|IU Number || BR(W) Number || Coach type || Current status|-|079151 || W7362W || Brake Corridor Composite, Diagram E159 || Preserved Dean Forest Railway<ref>[http://www.cs.rhrp.org.uk/se/CarriageInfo.asp?Ref=230 RHR Online, 7362]</ref>|-|079152 || W536W || Corridor Third, Diagram C77 || Preserved at Didcot <ref>[GWR 1146 Full http://www.cs.rhrp.org.uk/se/CarriageInfo.asp?Ref=73 RHR Online, 536]</ref>|-|079153 || W1146W || Corridor Third, Diagram C77 || Preserved SVR|-|079154 || W1086W || Corridor Third , Diagram C77 |1146| Preserved SVR|-|079155 || W7313W || Corridor Composite, Diagram E158 || Preserved at Didcot <ref>[http://www.cs.rhrp.org.uk/se/CarriageInfo.asp?Ref=229 RHR Online, 7313]</ref>|- |079156 || W7284W || Corridor Composite, Diagram E162 || Preserved SVR|-|079157 || W1116W || Corridor Third, Diagram C77 || Preserved SVR|-|079158 || W1087W || Corridor Third, Diagram C77 || Preserved SVR|-|079159 || W1111W || Corridor Third, Diagram C77 || Preserved at Didcot<ref>[http://www.cs.rhrp.org.uk/se/CarriageInfo.asp?Ref=100 RHR Online, 1111]</ref>|}.

The entire 9-coach test train was sold into preservation Early in 1969, with BR decided to dispose of the four TKs and Swindon Test Train. [[GWR 7284 CompositeGreat Western (SVR) Association|Corridor Composite 7284GW(SVR)A]] member David Rouse negotiated the purchase of the complete train for preservation, with four of the coaches being bought for acquired by the GWS at Didcot.<ref>SVR News 157</ref> The other five coaches arrived on the SVR and arriving on 19 December. All four Full Thirds were restored between 1970 and 1969, those being<ref>SVR Stock Book Third Edition</ref>:*1086, purchased by MJ Wilkinson<ref group="note"> After 1974, the owners in subsequent Stock Books were recorded as DW and saw service on PR Massey</ref>*[[The Severn Valley Railway on GWR 1087 Full Third |1087]], purchased by the main line#GW(SVR Carriages used on )A<ref group="note">Known as the GWR Coach Fund at the main line time of purchase.</ref>*[[GWR 1116 Full Third | SVR excursions on the main line1116]] in the mid to late 1970s (for which 1086 received , purchased by AJ Turley*[[TOPS codesGWR 1146 Full Third |TOPS Code1146]] 99234) as well as on , purchased by the SVR itself. [[The coach was also used in Carlton's made-for-TV movie 'GWR 813 Preservation Fund]]*[[Goodnight Mister TomGWR 7284 Composite|Corridor Composite 7284]]' in 1998 along with two other Great western coaches., purchased by PL Waite

Two of the five received minimal attention before entering service. 1087 and 7284 were first to be fully restored, entering service by mid-1971.<ref>SVR News 20</ref> Attention then turned to 1086 is which was mainly completed during 1972 before entering service in 1973.<ref>SVR News 22, 25</ref>  By 1974 all five had been fully restored and saw service on [[The Severn Valley Railway on the main line#SVR Carriages used on the main line | SVR excursions on the main line]] in the mid to late 1970s,<ref>SVR News 41</ref> (for which 1086 received [[TOPS codes|TOPS Code]] 99234), as well as on the SVR itself.  By early 1985, after some 12 years in service, 1086 was reported as being in reasonable running condition but 'looking terrible'.<ref>SVR News 75</ref> It was withdrawn from service later that year for a repaint, however examination revealed that a more comprehensive overhaul was required. Bodywork repairs were undertaken in Bewdley yard with several visits to the paint shop, while the interior was also stripped and is normally re-varnished. With repairs complete, 1086 was finished in 1938 livery and re-entered traffic in time for the 1988 Christmas services.<ref>SVR News 86-88, 90, 92</ref> 1086 was used in Carlton's made-for-TV movie '[[Goodnight Mister Tom]]' in 1998 along with two other Great western coaches. In 2001 work began on improving the appearance of the [[Carriages#The carriage sets|GW2 set]] which had become the source of negative comment. At the time 1086 was considered in the best condition of the set GW, but it nevertheless received an overhaul and repaint at Bewdley which was completed in July 2002.<ref>SVR News 142</ref> It continued in service, although not seeing intensive use, with a further repaint taking place at [[Bridgnorth MPD]]in 2018.<ref>SVR News 203</ref>  <gallery mode=packed heights=200px style="text-align:left">GWR C77 TK 1086 at Bridgnorth.jpg|1086 in 2013, seen from the compartment side.</gallery> During 2021 underwent a 'routine overhaul' at Kidderminster. It transpired that at some time after the 2002 overhaul, the lavatory taps had been removed and never replaced, with the lavatories being locked out of use. A full redecoration including new wall panels was required due to water leaking from joints in the roof going undetected for some years.<ref>SVR News 215</ref> 1086 is in service and is normally used in the GW2 set. It is finished in GWR 1934-42 livery featuring the ‘shirt'shirt-button’ button' roundel, and is owned by a [[Great Western (SVR) Association]] member<ref>[http://www.gw-svr-a.org.uk/stock_list.html The Great Western (SVR) Association stock list] (Retrieved 10 October 20194 September 2023)</ref>.