37421 3z02 Derby RTC - Carlisle Wapping Sidings Test train, Sun. 2nd October 2016
37421/37521 1Q83 Blackpool North - Derby RTC Test Train, 15th June 2018
Colas Railfreight 37421 Thrashes Passed Longton Working 3Z03 Stockport - Derby RTC
37421 & 37057 Pass Lancaster On Derby RTC - Carlisle High Wapping 13/02/18
Colas Rail Freight 37421 - 3Z01 Norwich-Derby RTC 20/09/2016
37219 3z02 Derby RTC - Carlisle Wapping Sidings, Sun. 17th July 2016
37099/37421 1Q83 Carnforth H.S. - Derby RTC Test Train, 23rd March 2018
Colas Tractor 37521 3Z02
Colas 37521 thrashes Berkhamsted on an Ultrasonic Testing Unit to Derby RTC - 6th January 2018
Broken 97303 on 3Z01 + 37254 on 3Z02 08/01/2023
37421 on test train duties tonight
37612 37421 37099 Spondon 9th January 2023 07 46 RTC Nottingham
37116/37421 1Q18 Blackpool North - Derby RTC Test Train, 13th July 2018
37025/37421 1Q83 Blackpool North - Derby RTC Test Train, 16th June 2017
37421 TnT 37219: 3Z54 11:01 Slateford Depot to Carlisle | Carlisle (19/03/17)
37057 tnt 37421 1Q47 1051 Derby R.T.C.(Network Rail) - Sellafield - Carlisle High Wapping Sdgs
37603/9701 3Q16 Kilmarnock - Derby RTC Test Train, 20th January 2014
37254 Willington 8th January 2023 3Z02 14 00 Derby RTC Carlisle
37219 & 37521 passes Darlington - 0Z21 Derby R.T.C. to Millerhill S.S.
37612/37609 1Q13 Carnforth - Derby RTC Test Train, 2nd May 2014
