"Metro railcar engineers believe the potential exists for an undetectable failure of the 4000-series [automatic train control] ATC system control board that could result in improper speed commands ...

“Our view is within 18 months we could be best in class on productivity for railcar maintenance ... have more consistent problems. Metro’s 4000 and 5000 series cars, delivered in the 1990s ...

WASHINGTON (ABC7) — Metro says it temporarily pulled a number of its 4000-series cars out of service Thursday, and for the indefinite future they will no longer be used as lead cars with a ...

Metro is getting rid of all its original, 40-year-old rail cars by the end of the month. All 1000 and 4000 series rail cars are expected to be replaced by 7000 series cars by July 1, the transit ...