A U.S. safety board finds problems with pressure relief devices of freight train that derailed in Ohio
A U.S. safety board said on Tuesday it found anomalies in pressure relief devices of the freight train operated by Norfolk Southern Corp that derailed on Feb. 3 in East Palestine, Ohio.
The National Transportation Safety Board said testing of the devices removed from five tank cars found anomalies with the function of some that may have compromised the capability of the valves to regulate internal pressure of the tank cars in a fire to lessen the risk of an explosion. Since the derailment, some of the town’s 4,700 residents have reported ailments such as rashes and breathing difficulties and fear long-term health effects but no deaths or injuries were reported after the incident.
Earlier this month the NTSB found that aluminum parts on three tank cars may have melted and caused PRDs not to function, contributing to the release of toxic chemicals last month.
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