England and was being used for training by South West Trains at Northam Carriage Servicing Depot, while the others remained at the Wildenrath test track in Germany. The first rebuilt unit arrived at Heathrow Connect's Old Oak Common depot in November 2004, and services commenced in June 2005. An additional unit was subsequently ordered; it arrived in England in November 2005 but did not enter service for a further 12 months. In 2007 five additional intermediate vehicles were procured and used to lengthen each unit to five carriages. In 2010, one unit began operating a Heathrow Central to Heathrow Terminal 4 shuttle, with a new Heathrow Express livery. In May 2018 TfL Rail inherited all five of Heathrow Connect's Class 360s, which were replaced by Class 345 units once problems with the European Train Control System in the Heathrow tunnel were resolved. On 30 July 2020, Class 345 units began entering passenger service on the Heathrow branch, and the last Class 360 units were withdrawn on 13 September 2020. In February 2021, Rail Operations Group (ROG) announced it had purchased the five-strong fleet from Heathrow Airport Holdings. The fleet was moved to MoD Bicester for storage pending further use with the company, which potentially included conversion into "fast freight" units. In August 2022, ROG stated that the units would not be repurposed due to technical issues, and that they wished the units to return to passenger service. However, this did not occur, and on 23 August 2022 unit 360205 was taken to Sims Metal in Newport, South Wales, to be scrapped. Unit 360204 followed shortly thereafter. In October 2022, it was announced that the remaining three units had been acquired by the Global Centre of Rail Excellence (GCRE). The units will be used in the running-in process for the GCRE's infrastructure test track, as well as being made available to the railway industry as research and development test trains. Accidents and incidents On 25 May 2014, 360205 derailed as it entered due to bogie maintenance errors, exacerbated by a track defect. Fleet details References 360 Siemens multiple units Train-related introductions in 2003 25 kV AC multiple units