trains are almost exclusively used on the fast services between London St Pancras and Sheffield. Since the retirement of the HSTs, they have commenced working London St Pancras to Leeds via Sheffield. The five-car trains are mainly used between London St Pancras and Sheffield, Nottingham or Corby on semi-fast services, and at off-peak times. The four-car trains supplement the five-car trains on these services, or can alternatively form standalone services. In December 2008, the Class 222 Meridians started work on the hourly London St Pancras to Sheffield services, because they have faster acceleration than the High Speed Trains and so were able to reduce the Sheffield to London journey time by 12 minutes. The hourly Nottingham service was then transferred to High Speed Train running to cover for the Meridians now working the hourly Sheffield fast service. In February 2009, units 222101 and 222102 transferred from Hull Trains to East Midlands Trains, and were quickly repainted in the East Midlands Trains white livery. Unit 222104 followed later in the year, and unit 222103 a further few months later after repairs had been completed: unit 222103 had been out of service for two years since early 2007, when the unit fell from jacks at Bombardier's Crofton works. In August 2019, following the Department for Transport's awarding of the East Midlands franchise to Abellio, all of the 222 fleet transferred to new operator East Midlands Railway. Hull services Hull Trains introduced Class 222 Pioneer units, to replace its Class 170 Turbostars in May 2005. The units reduced journey times between Hull and London King's Cross by up to 20 minutes. The Pioneers had a different interior colour scheme and less first-class seating than the Meridians. First Hull Trains' fleet consisted of four four-car Pioneers. First Hull Trains decided to use only Class 180 units from 2009 onwards. The Class 222s were transferred to East Midlands Trains in 2008/09 and are now branded Meridian. Refurbishment East Midlands Trains refurbished its entire Class 222 fleet. The refurbishment included new seat covers and carpets in standard class. First class received new leather seat covers along with a new colour scheme and carpets. The refurbishment started in February 2011 and was complete by spring 2012. Incidents On 10 June 2006, unit 222009 working 1D17 10:30 London to Sheffield had to be taken out of service due to a door being discovered open at Desborough, Northamptonshire whilst