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            HQ-2020-1389
      

      
  Document Series
              Accident Investigations


      
  Author
          Federal Railroad Administration


      
Accident Date
              July 6, 2020

  Accident Type
              Derailment (DRM)

  Railroad Name
              BNSF Railway

  Location
              Winslow, AZUnited States

  Accident Number
              HQ-2020-1389

  Investigation Status
              Finalized


      Subject
                    Accident Investigations


      
  Keywords
              BNSF Railway, derailment, dynamic brake, buffing or slack action excessive, train make-up, fatigue


      

      
      
              
                  
      
              
  Document
              HQ-2020-1389 FARS Final_0.pdf (1.19 MB)

      
              On Monday, July 6, 2020 at approximately 6:00 a.m., MDT, a BNSF freight train derailed 29 railcars on the Gallup Subdivision near Winslow, Arizona.  No injuries were reported.  There were no hazardous materials released.  The probable cause is cause code H519- Dynamic Brake, too rapid adjustment.  Contributing to the cause of the derailment was a block of 5 empty cars placed ahead of a block of 6,900 trailing tons, cause code H-504- Buffing or slack action excessive, train make-up and FRA fatigue analysis sound fatigue was present in both the engineer and conductor which may have had a contributing effect, cause code H199- Employee physical condition.
      
            
      
      
              Last updated: Monday, July 6, 2020 U.S. DEPARTMENT OF TRANSPORTATION

**Federal Railroad Administration**

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