Editing LMS Coronation Class (section)

== Accidents and incidents ==
[[File:Winsford rail incident 2064689 dbe10192.jpg|thumb|left|No. 6251 ''City of Nottingham'' showing the damage to its front end following the 1948 collision at Winsford.]]
[[File:H&W crash 4.png|thumb|right|No. 46242 ''City of Glasgow'' after the 1952 Harrow and Wealdstone collision. Despite the extensive damage it was subsequently repaired and returned to service.]]
*On 21 July 1945, locomotive No. 6231 ''Duchess of Atholl'' was hauling an express passenger train which overran signals and collided with a freight train that was being shunted at {{rws|Ecclefechan}}, [[Dumfriesshire]]. Two people were killed and three were injured.<ref name="Hoole"/>
*On 21 July 1947, locomotive No. 6244 ''King George VI'' was derailed at {{convert|60|mph|km/h|abbr=on}} near [[Polesworth]], [[Warwickshire]] due to the poor state of the track following the years of neglect throughout the Second World War. Coaches piled up behind it and five passengers were killed and 64 injured.{{r|Talbot11 |p=83 |at=Plates 117–118}} 
*On 19 November 1951 No. 46252 ''City of Leicester'', whilst traversing from the fast line to the slow, was derailed at almost the same spot. This time there was no pile-up and no serious injury.<ref>{{cite web|url=http://www.warwickshirerailways.com/lms/lnwr_pol1210.htm|title=LMS Route: Rugby to Tamworth Polesworth Station: lnwr_pol1210|publisher=WarwickshireRailways|access-date=7 November 2016}}</ref>
*On 17 April 1948, locomotive No. 6251 ''City of Nottingham'' was hauling a mail train which was in [[1948 Winsford railway accident|a rear-end collision with a passenger train at Winsford, Cheshire]]. In the first major accident for the newly formed [[British Railways]], 24 people were killed and thirty injured.{{r|Earnshaw|p=30}}
*On 25 April 1949, locomotive No. 46230 ''Duchess of Buccleuch'' was hauling a passenger train that overran a signal and was derailed at Douglas Park Signal Box, [[Motherwell]], [[Lanarkshire]]. The signalman was suspected of having deliberately moved points under the train.<ref>{{cite book |last=Vaughan |first=Adrian |title=Obstruction Danger |year=1989 |publisher=Patrick Stephens |location=Wellingborough |isbn=1-85260-055-1 |pages=18–19}}</ref>
*On 8 October 1952, locomotive No. 46242 ''City of Glasgow'' was hauling an express passenger train when it overran signals and [[Harrow and Wealdstone rail crash|crashed into a local passenger train]] at {{rws|Harrow and Wealdstone}}, [[Middlesex]]. Another express passenger train ran into the wreckage. In the second deadliest railway accident in the United Kingdom, 112 people were killed; 102 at the scene and 10 more died later from their injuries; no fewer than 340 people were injured.<ref name="Trevena"/><ref>{{cite book |last1=Rolt |first1=L.T.C. |last2=Kichenside |first2=Geoffrey M. |title=Red for Danger |edition=4th |year=1982 |orig-year=1955 |publisher=David & Charles |location=Newton Abbot |isbn=0-7153-8362-0|page=288}}</ref>
*On 3 February 1954, locomotive No. 46250 ''City of Lichfield'' was hauling a passenger train that was derailed inside Watford Tunnel, [[Hertfordshire]] due to a broken rail. The rear three carriages became divided from the train at {{rws|Watford Junction}} station, with one of them ending up on the platform. Fifteen people were injured.{{r|Earnshaw|p=34}}

There were three instances of firebox crown collapse, resulting in boiler explosions. No. 6224 ''Princess Alexandra'' suffered a severe failure at Craigenhill on 10 September 1940 due to the inexperience of the crew (who both perished).<ref name="Bond"/><ref name="Webb"/> The same locomotive suffered a similar failure on 7 March 1948 at Lamington due to dirty and malfunctioning water gauge glasses.<ref name="Webb"/> The third incident occurred as No. 46238 ''City of Carlisle'' was passing Bletchley on 24 January 1962 – this was attributed to faulty design of the water gauge glasses.<ref name="Webb"/>