NTSB report shows Norfolk Southern alerted to overheated wheel bearing right before Ohio train derailment
The NTSB report released Thursday is preliminary. Officials concluded their on-scene investigation Wednesday but will continue assessing the incident, something that's expected to take several more months. As part of that, the NTSB will hold a rare field investigative hearing with invited witnesses in East Palestine this spring.
As the train traveled through East Palestine on Feb. 3, a hot bearing detector along the railroad issued an alarm instructing the crew to slow down and stop to inspect a hot axle, according to the NTSB report. The train was traveling about 47 mph at the time of the derailment, below the maximum allowed speed of 50 mph.
The train passed two other hot bearing detectors starting 30 miles before East Palestine. The wheel bearing heated up over that time, but Norfolk Southern didn't consider the first two recorded temperatures to be critical. Temperature limits are set by individual railroads, and Homendy said those numbers vary widely."You cannot wait until they've failed," Homendy said."Problems need to be identified early so something catastrophic like this does not occur again.
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