Probable cause
Under investigation helicopter accidents
Incidents where the official investigation is ongoing and a probable cause has not yet been determined.
Total incidents
491
Confirmed fatalities
414
Fatal incidents
160
Fatal rate
32.6%
Most affected countries
🇺🇸 United States44 incidents
🇦🇺 Australia6 incidents
🇷🇺 Russia5 incidents
🇨🇦 Canada5 incidents
🇬🇷 Greece4 incidents
Most affected aircraft
How many helicopter crashes are caused by under investigation?
491 incidents in this database are attributed to under investigation, causing 414 deathsacross 160 fatal accidents, between 2002 and 2026.
Where does this happen most?
Most often in United States, with 245 records, then Australia with 22.
Showing 100 most recent of 491 total incidents.
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