Tantalizingly incomplete report from Buttplug's National Transportation Security Board.
...(NTSB) released on Thursday a preliminary report revealing that the wheel bearings on a Norfolk Southern train carrying toxic chemicals overheated before derailing in eastern Ohio earlier this month. The train passed through hot bearing detectors (HBD) which detected it surpassed Norfolk Southern’s “critical” standard at several points, reaching over 250 degrees above ambient temperature, forcing the train to stop and leading to a fire...
... “The function of the HBD is to detect overheated bearings and provide audible real-time warnings to train crews,” the preliminary report reads. “Train 32N passed three HBD systems on its trip before the derailment.”...
Oh.
THREE hotbox detectors. Did any of them work? If so, did the train crew ignore the "audible warning"?
And of course, did the fire continue burning after the derailment? For how long? Did that fire pose an imminent danger of overheating the tank(s)?
Lots to answer.
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