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[[File:BR_25346_20150307{{Infobox maroon carriage|image = BR_25346a_20150307.jpg |thumbcaption = BR Corridor Second 25346|300pxconstruc = BR Wolverton|rightstatus = In service|carno = M25346| livery = BR Standard Corridor 25346Maroon|othernos = E25346|designed = |diagram = 146|lot = 30349|cartype = [[:Category:Carriage Type SK|SK]]|topscode = [[:Category:Carriage Type SK|AA21]]|seats = 48|built = 1957|years1 = 1982|events1 = Entered preservation|years2 = |events2 = |years3 = |events3 = |years4 = |events4 = |years5 = |events5 = |years6 = |events6 = }}'''M25346''' is a '''BR Mk Mark 1 Corridor Second ''' (SK) No 25346 . The Corridor Second was the most prolific of the Mark 1 passenger stock, with more than 2,200 built . Internally it had eight compartments with two end vestibules and a cross vestibule at the centre; two toilets were provided in 1957 at Wolverton to diagram number 146 lot number 30349one of the two end vestibules. Lot 30349 was unique Those in having single-bolster bogiesthe Western and Southern regions seated eight per compartment, but 25346 has since been fitted with standard bogieswhile those on Midland and Eastern routes seated six per compartment. Early examples featured veneered walls, while later batches used formica laminates. The SKs were an early candidate for withdrawal, being replaced by Mark 2 Open, HST sets and Networker Turbo units<ref name=SB9>SVR Stock Book 9th edition</ref><ref name = SVRCT>SVR Charitable Trust</ref>.

It ==Service and preservation==25346 was preserved built in 19821957 at Wolverton to Diagram 146 (AA201), Lot 30349. As built, 25346 was fitted with Mk2 'Madison Modified' bogies with plain bearings, and last overhauled in 2010although it has since been fitted with standard bogies. It is seen photographed entered service in the London Midland region in March 2015 as part of August 1957, transferring to the BR Maroon setEastern region in June 1977. It is owned by the <ref>[[Severn Valley Railway Charitable Trust Ltd Bibliography#Other References| SVR Charitable TrustLongworth (2013)]]pp.137-8.</ref>

In 1982 BR's York Works were ordered to overhaul 200 Mark 1 vehicles. Having fallen behind with this work, by the time 25346's overhaul had been completed at a cost of more than £2,000, the new faster train services were being introduced and 25346 became one of a number of carriages to be withdrawn immediately after being outshopped. It was acquired from York by the [[L.M.S. & B.R. Coach Fund]] for just £1,100,<ref name = SVRCT/> arriving on 21 July 1982.<ref name=SB9/> At the time it was noted that despite being ex-works, it was suffering from a suspected burst roof tank, although this proved to be only a split vent pipe which was easily remedied.<ref>SVR News 89</ref> 25346 entered service on the SVR in the InterCity blue and grey livery in which it was acquired. It was withdrawn from traffic on 3 August for a 12-day repaint at Bridgnorth into its original BR Crimson and Cream livery. Experimentally, automotive-type black lining tape was used to apply the lining in conjunction with the usual gold lining paint. This technique, which was similar to that used by BR for applying their blue and grey livery, proved a success and was adopted for other repaints.<ref>SVR News 73, 75</ref> In spring 1988 the windows were re-bedded at [[Carriage Repair Works#Other_facilities|Bridgnorth]] in anticipation of another repaint later in the year. The "heavy clean and quick repaint" was completed in time for the [[Autumn Steam Gala]] despite starting just 3 weeks before.<ref>SVR News 87, 90</ref>  25346 was one of several coaches "stopped" in 1999. During 2000 most of the body at the lavatory end was rebuilt at [[Carriage Repair Works#Bewdley_Carriage_and_Wagon_Department|Bewdley]], several doors were re-skimmed, all the windows resealed, the seats were fully reupholstered in new moquette, and most of the interior revarnished. The moquette was an experimental grey and pink design developed for First Great Western Railway but not subsequently taken up by them, with all sixteen rolls of the cloth being acquired by the SVR for use in the 1960s liveried coaches. The carriage was then repainted into 1960s BR Maroon livery at Kidderminster. 25346, which effectively seats 48, was transferred from [[Carriages#Set_C|Set C (BR Crimson and Cream)]] to [[Carriages#Set_M|Set M (BR Maroon)]] in order to increase the seating capacity in the Set C by exchanging it with [[BR 4545 Tourist Standard Open| TSO 4545]] which seats 64. 25346 was outshopped at the end of February 2001 with 4545 taking its place in the paint shop for its repaint from Maroon into Crimson and Cream.<ref>SVR News 133, 135</ref><ref name = SVRCT/> In 2007 the [[L.M.S. & B.R. Coach Fund]]'s carriages including 25346 were transferred into the ownership of the [[Severn Valley Railway Charitable Trust Ltd | SVR Charitable Trust]]. Since that time, it has benefited from a slow-speed charger and new batteries at the Trust's expense. By winter 2009-10 25346's wheels had become worn and required a wheelset change. The larger wheels in turn required the ride height to be adjusted by re-tensioning the springs on the bogies to ensure that the steps in gangways did not exceed the permitted amount. New bearing pads were also provided and brake rigging repairs carried out to eliminate wear. Repairs were made to the steam-pipe and a new set of overhauled Buckeye couplings were fitted.<ref>SVR News 168</ref> Later in 2010 the carriage underwent its '10 year' overhaul at Kidderminster, which was completed just in time for that year's Santa duties.<ref>SVR News 173</ref> Its appearance was improved in mid-2016 by a "quick repaint". <ref>SVR News 197</ref> In 2021 it received a new toilet floor.<ref>SVR News 216, Winter 2021, p. 28</ref> It remains in BR Maroon liveryas seen in this photograph in March 2015. <gallery mode=packed heights=200px style="text-align:left">BR_25346_20150307.jpg|25346 in March 2015</gallery>

*[[Carriages#BR Designed Coaches | List of carriages]]<br>: [[BR 24845 Standard Corridor | Previous ]]<br>: [[BR 25498 Corridor Second | Next ]]

Railway Heritage Register Carriage Survey<brreferences />

*[http://www.cs.vintagecarriagestrustrhrp.org.uk/se/CarriageInfo.asp?Ref=1740 25346 on vintagecarriagestrust.orgRailway Heritage Register On-Line]<br>*[httphttps://www.svrtrust.org.uk/our-vehicles/br/25346-2index.html php?page=BR%20Corridor%20Second%20No%2025346 25346 on svrtrust.org.uk]