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Confusion on Sensor Plane's Abilities Delayed Response in East Palestine Train Derailment, Report Says

  • The 2023 East Palestine train derailment involved five rail tank cars filled with toxic vinyl chloride that were blown open during the emergency response.
  • An EPA Inspector General report released Tuesday found the agency delayed calling the ASPECT sensor plane and misunderstood its advanced temperature detection capabilities.
  • The plane could detect temperature changes of less than one degree, but EPA officials mistakenly believed it only sensed 20- to 30-degree differences, limiting its use before the vent-and-burn operation.
  • The report said that limited awareness of ASPECT’s full capabilities by the on-scene coordinator "could negatively impact emergency response decision-making," and that accurate data could have helped avoid blowing open the tank cars.
  • The incident caused massive toxic smoke and evacuation of much of East Palestine and has driven calls for rail safety reform amid lingering health concerns despite EPA assurances.
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U.S. News broke the news in New York, United States on Tuesday, June 3, 2025.
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