By David Schultz
There's a backlog of rail cars sitting outside this facilitiy, waiting to be serviced.
This weekend, Metro sent 100 of its 4000-series rail cars to the Brentwood Rail Yard in Northeast D.C. after it discovered a problem with their doors. Mechanics are removing the door motors from these trains - all 1,200 motors - and checking their circuitry.
Metro says it could take up to four weeks to repair all these cars. The oldest among them is 17 years old, but many of them are older than that.
And these aren't even Metro's oldest rail cars. Those would be the 1000-series, which have been running since Metro opened in the mid-1970s.
Metro is currently trying to purchase new rail cars to replace them.