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Who We Are and What We Do

​​​​​​​​​​​​​​​​The National Transportation Safety Board is an independent federal agency charged by Congress with investigating every civil aviation accident in the United States and significant events in other modes of transportation—railroad, transit, highway, marine, pipeline, and commercial space.

We determine the probable cause of the accidents we investigate and issue safety recommendations aimed at preventing future accidents. In addition, we conduct transportation safety research studies and offer information and other assist​ance to family members and survivors for any accident investigated by the agency.  ​

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23 Mar 2023

Deficient Monitoring of Icy Roads, Speeding, Leads to I-35W Multi-Vehicle…

​​​WASHINGTON (March 23, 2023) – The company responsible for the operation and maintenance of Interstate 35 West (I-35W) in Fort Worth, Texas, failed…

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23 Mar 2023

Wrong Estimate of Crane Height Leads to Bridge Contact

​​​WASHINGTON (March 23, 2023) — An incorrect estimate of a crane’s boom height led to contact with the Houma Twin Span Bridge last year in Houma,…

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21 Mar 2023

NTSB Examines Pressure Relief Devices In East Palestine Derailment

​​​WASHINGTON (March 21, 2023) — Investigators with the National Transportation Safety Board examined and tested pressure relief devices removed from…

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