Gridlock Metro pulls 3000-series rail cars after problem with doors. The 284 cars were pulled from the transit agency’s fleet, and the move means more six-car trains.

Metro is putting 3000-series rail cars back into service. WMATA says all those cars were pulled and inspected following reports that a train left a Northern Virginia station without all the doors ...

Metro said Wednesday that it has determined what caused the door on one of its 3000-series rail cars to malfunction, inspected the fleet, and returned the roughly 300 older-model cars to service.

Metro’s 3000-series rail cars are back in service on the Washington, D.C. subway system after a door malfunction occurred over the weekend.