U.S. agency releases report on Ohio train derailment but questions, concerns linger
WASHINGTON, Feb. 23 (Xinhua) -- A federal agency released a preliminary report Thursday on the derailment of a train carrying hazardous chemicals in East Palestine, Ohio, earlier this month.
The report issued by the National Transportation Security Board (NTSB) said the Norfolk Southern train passed three hot bearing detectors (HBD) on its trip before the derailment on the night of Feb. 3.
The function of the HBD is to detect overheated bearings and provide audible real-time warnings to train crews.