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Did Metro know there was a problem with a Wee-Z bond for the track circuit where the accident occurred?

April 26, 2017Accident Bond circuit Metro problem track wee-z

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Did Metro know there was a problem with a Wee-Z bond for the track circuit where the accident occurred?

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Metro normally conducts computerized analytical tests on a monthly basis to review what’s taking place electronically in the rail system. During a special review of the data after the accident, Metro discovered that a newly installed Wee-Z bond in the area of the accident periodically lost its ability to detect trains five days before the accident.