Ohio Train Derailment Spurs Rail Safety Advisory on Hot Box Detectors

The Federal Railroad Administration has put out a safety advisory urging the railroads to look at their policies and procedures for using and maintaining hot bearing wayside detectors, also known as hot box detectors. Hot box detectors (HBDs) gauge the temperature of the wheel bearings of passing trains. Federal investigators are looking at how an overheated bearing might have contributed or led to the Feb. 3 derailment of a Norfolk Southern train in East Palestine, Ohio. Tuesday’s safety advisory, which has been submitted for publication to the Federal Register, calls for the railroads to do the following: Use HBD data to evaluate the thresholds for inspections; factor in real-time trend analyses of HBD data in the inspection process; ensure that those who calibrate, inspect and maintain HBDs are properly trained and qualified; use HBD alerts when inspecting rolling stock; and seek to improve the safety culture of the organization, particularly when it comes to operational decisions based on HBD data. FRA noted that burnt journal bearings may have been the cause of at least five derailments since 2021, including three that involved NS. The two other derailments involved Kansas City Southern.  Read More 

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