The National Transportation Safety Board (NTSB) has released new factual information via the public docket for  two Tesla accident investigations – the March 23, 2018, crash of a Tesla Model X in Mountain View, California,  and the March 1, 2019, crash of a Tesla Model 3 in Delray Beach, Florida.

The Mountain View accident occurred when a 2017 Tesla Model X P100D electric-powered passenger vehicle operated with advanced driver assistance features – a feature  Tesla calls “autopilot” – departed  the southbound travel lanes of Highway 101 and struck a previously damaged crash attenuator. The driver, the sole occupant of the vehicle, was fatally injured in the crash.

About 500 pages of factual information covering various aspects of the investigation were made public Tuesday.  These items have been added to the Mountain View public docket, which was originally opened on June 19, 2019, when the NTSB released more than 500 pages of factual information.  The Mountain View docket is available at

The Delray accident occurred when a 2018 Tesla Model 3 electric-powered passenger vehicle traveling southbound on State Highway 441 struck an eastbound semitractor-trailer that had crossed in front of the Tesla.  At the time of the crash, Tesla’s ”autopilot” system was active. The driver, the sole occupant of the Tesla, was fatally injured. The truck driver was uninjured. The public docket for the Delray investigation was opened Tuesday and is available at

Both dockets contain only factual information collected by NTSB investigators; they do not provide the final report, analysis, findings, safety recommendations, or probable cause. No conclusions about how or why theses crashes occurred should be drawn from the information within the docket.

Deliberations over the analysis, findings, recommendations, and probable cause determinations related to the Mountain View crash are scheduled to be conducted during a public board meeting set for Feb. 25. Details about that meeting as well as the preliminary report, news releases, and other information is available on the accident webpage:

The final report for the Delray crash, including the findings, analysis and probable cause, will be released in the coming weeks. Additional information about the Delray investigation is available on the accident webpage: