Overview of the site of the 2021 Alaska Airbus AS350 B3 helicopter crash from the NTSB preliminary report. Czech description.
NTSB, Investigator In Charge: Cawthra, Joshua; <a href="//commons.wikimedia.org/wiki/User:Juandev" title="User:Juandev">Juandev</a> (Czech language translation)
<a rel="nofollow" class="external text" href="https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/102813/pdf">National Transportation Safety Board Aviation Accident Preliminary Report WPR21FA143</a>