The Washington Metropolitan Area Transit Authority idled 748 Metro cars on Monday after one train derailed at least three times on Oct. 12, officials said. Skip to content Skip to site index U.S.

More than half of the Washington, D.C., Metro system's train cars have been taken offline after last week's derailment and a possible safety issue with wheel assemblies, officials said.. The ...

Metro removed all of its 748 7000-series rail cars — about 60% of its fleet — from the tracks after a National Transportation Safety Board (NTSB) investigation found that faulty wheel ...