During 2023 the following work was carried out on 89001 at the UK Rail Leasing works at Loughborough:
- re-installation of the repaired traction motors into the No.1 end bogie,
- repair and re-installation of the faulty traction motor blower motor,
- repair and re-installation of the driving cab air conditioning units,
- installation of new control battery cells (the field battery cells were changed a few years ago),
- fitment of an overhauled pantograph,
- installation of the equipment required for mainline operation: GSM-R radio, TPWS and On Train Data Recorder,
- installation of a new fire suppression system (the original did not comply with modern regulations).