the Settle-Carlisle line both ways. Then on the Sunday of the same week, 11 August (the final day of regular steam on BR in 1968), 45231 was given the honour of double heading once again with sister 44932, but this time acting as pilot engine, and it carried the 1T57 Headboard for the occasion. Also for the trip, its "Sherwood Forester" nameplates were removed as the majority of Black 5s in BR days, apart from five, did not have nameplates fitted. 45231 & 44932 worked the Carlisle to Manchester via Hellifield and Darwen leg of the Railway Touring Company's "Fifteen Guinea Special" 45th anniversary train. Other engines that played roles in this special were a third sibling engine no 45305 (allocated to the original train in 1968 but replaced by 45110) which worked from Liverpool to Manchester and return via Warrington Central and 70013 Oliver Cromwell which worked the Manchester to Carlisle leg via Hellifield. TPWS Isolation Incident On 2 October 2015, The Sherwood Forester was working a West Coast Railways (WCR) special through Doncaster when it was noticed that its Train Protection & Warning System (TPWS) had been isolated by the footplate crew. Previously, isolation of TPWS on a WCR operated locomotive had been a factor in the 2015 Wootton Bassett SPAD incident and the resultant suspension of WCRC's access to the network. As a result, in November 2015 a further prohibition notice was issued to WCRC by the Office of Rail and Road, suspending further steam services operated by them. References External links Great Central Railway page Railuk database 45231 Preserved London, Midland and Scottish Railway steam locomotives Individual locomotives of Great Britain Railway locomotives introduced in 1936 Standard gauge steam locomotives of Great Britain