tractor driver was seriously injured; the train driver and some passengers sustained minor injuries. An investigation revealed that the tractor driver had obtained permission to cross the line. 15 October 2017, unit 170272 collided with a car on a level crossing at , on the East Suffolk Line. The car driver was airlifted to hospital. 10 October 2018, unit 170402 derailed at Stonehaven, from Aberdeen to Dundee. 3 March 2019, unit 170520 collided with a fallen tree on the line running from Lydney to Gloucester and derailed. The front cab was severely damaged. 23 March 2020, unit 170107 collided with locomotive 66057, which had run through a buffer stop at the end of a siding at and ended up foul of the running line. None of the two crew and four passengers on board were injured. The driver of the locomotive was subsequently convicted of an offence contrary to the Health and Safety at Work Act 1974. He was sentenced to 8 months' imprisonment, suspended for 18 months. References Further reading Adtranz multiple units Bombardier Transportation multiple units 170 Train-related introductions in 1998