On November 24, 2020, all 6000 series rail-cars were removed from service following two train-separation incidents on the Red Line in a one month span. The first incident happened on October 9, 2020 when cars 6075 and 6079 separated from each other between NoMa and Union station, causing service to be suspended between Gallery Place and Rhode Island Avenue stations. The second incident happened on November 24, 2020 when cars 6150 and 6177 pulled apart from each other while departing Glenmont station, causing rail service to be suspended between Glenmont and Forest Glen stations. Both incidents caused no injuries.