- Norfolk Southern determines ‘urgent railcar safety issue’ after loose wheels found on rail cars in second Ohio derailment CNN
- Railroads warned about car issue that could lead to derailments Fox Business
- Discovery of loose wheels adds to Norfolk Southern’s safety problems The Washington Post
- Railroads told to take cars out of service, after Norfolk Southern discovered loose wheels involved in Spring cleveland.com
- Wheel defect could cause train derailments, railroad group warns OregonLive
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