NTSB: Looking at 'Anomalies' in DC Track Circuit
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NTSB: Looking at 'Anomalies' in DC Track Circuit
Investigators say they're looking at a track circuit in the area where a fatal Metro transit train crash occurred. The NTSB says five of six circuits showed no problems during tests, but there were 'anomalies' with the sixth circuit.
Webcastr | June 24, 2009
