 Due to the economic downturn of the late 2000s, in 2011 numbers 6401-6410, 6419, 6420, 6443-6460, 6462, 6471-6475, 6480-6494, 6496, 6498 and 6501-6503 were out of service.In 1993 several locomotives were sent to the Norwegian State Railways (NSB) for assessment.On 3 October 1993 locomotive 6454 ran away downhill outside Nordstrand Station; it collided with a stationary passenger train in the station, resulting in the death of five people.