NTSB investigations
161 cases where the sequence of events included Dynamic rollover.
Cases per year
| 2008 | 1 |
|---|---|
| 2009 | 12 |
| 2010 | 9 |
| 2011 | 8 |
| 2012 | 10 |
| 2013 | 2 |
| 2014 | 14 |
| 2015 | 6 |
| 2016 | 8 |
| 2017 | 12 |
| 2018 | 8 |
| 2019 | 14 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 16 |
| 2023 | 6 |
| 2024 | 9 |
| 2025 | 10 |
| 2026 | 7 |
Where
Open the mapLatest cases
Query with SQL
duckdb -csv -c "SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c.\"mKey\" AND a.position = 1 WHERE c.\"mKey\" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.\"tier2Number\" = '231' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE \"isDefiningEvent\")) ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"
Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1 WHERE c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '231' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB ERA26LA313Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R22 Beta · Milton, FLThe flight instructor’s failure to maintain control of the helicopter during a low hover over a grass area, which resulted in left skid contact with the ground and a dynamic rollover to the left.NTSB ERA26LA304Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R22 Beta · Miramar, FLThe flight instructor’s failure to maintain control of the helicopter during a hover, which resulted in the left skid contacting ground and a subsequent dynamic rollover.NTSB ERA26LA274Accident · No injuriesClass 4 · LimitedInvestigation openRobinson R22 · Monroe, NCNTSB ANC26LA051Accident · Minor injuriesClass 3 · LimitedPreliminary reportRobinson R44 · Pembroke Pines, FLOn June 13, 2026, about 1318 eastern daylight time, a Robinson R44 Raven I helicopter, N336SG, was substantially damaged when it was involved in an accident at the North Perry Airport (HWO), Hollywood, Florida. The pilot and three passengers sustained minor…NTSB CEN26LA203Accident · Serious injuriesClass 4 · LimitedFinal reportRobinson Helicopter R66 · Fort Worth, TXThe flight instructor’s delayed remedial action and the student pilot’s failure to maintain helicopter control during hover.NTSB WPR26LA188Accident · Minor injuriesClass 4 · LimitedFinal reportMcdonnell Douglas Helicopter 500 · Twin Falls, IDThe pilot’s failure to maintain control while hovering in gusty wind conditions, resulting in the helicopter rolling onto its side.NTSB WPR26LA146Accident · No injuriesClass 4 · LimitedFinal reportBell Helicopter Textron 206L-1 · Chimney Rock, MTThe pilot’s failure to maintain adequate clearance from the terrain while performing a low altitude circling takeoff maneuver, which resulted in a dynamic rollover.NTSB CEN26LA061Accident · Serious injuriesClass 3 · LimitedPreliminary reportBell Textron Canada 505 · Divot, TXOn December 13, 2025, about 1345 central standard time, a Bell Helicopter 505, N865S, was substantially damaged when it was involved in an accident near Divot, Texas. The pilot was seriously injured and the passenger sustained minor injuries. The helicopter…NTSB ERA25LA359Accident · No injuriesClass 4 · LimitedFinal reportEdwin Miller Calidus · Hopkinsville, KYThe pilot’s failure to maintain control of the gyroplane, which resulted in dynamic rollover and impact with terrain.NTSB CEN25LA337Accident · Minor injuriesClass 4 · LimitedFinal reportBell OH-58A · Caseville, MIThe front seat passenger’s inadvertent movement of the cyclic control resulting in a dynamic rollover after landing. Contributing to the accident was the pilot’s decision to leave the dual flight controls installed with a non-pilot passenger in the front seat.NTSB ERA25LA282Accident · Minor injuriesClass 4 · LimitedFinal reportPaul Dennis Berg Exec 162F · Holley, NYThe pilot’s failure to maintain clearance with the ground while hovering, which resulted in a dynamic rollover.NTSB CEN25LA167Accident · Minor injuriesClass 4 · LimitedFinal reportBell Helicopter Textron Canada 505 · Bethany, OKThe pilot’s improper landing technique that allowed the helicopter’s right skid to get caught on the landing platform, which resulted in a dynamic rollover.NTSB ERA25LA160Accident · No injuriesClass 4 · LimitedFinal reportRotorway Exec · Chuluota, FLThe pilot’s failure to maintain lateral control of the helicopter during takeoff, which resulted in a dynamic rollover.NTSB WPR25LA118Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Hobbs, NMThe student pilot’s loss of directional control during a hover, which resulted in an impact with terrain.NTSB CEN25LA123Accident · Minor injuriesClass 4 · LimitedFinal reportCaldwell C W 162F · Mounds, OKThe student pilot’s failure to maintain control of the helicopter during a precautionary landing, which resulted in a dynamic roll over and postimpact fire.NTSB WPR25LA110Accident · Minor injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Las Vegas, NVThe pilot’s loss of helicopter control after the door opened during takeoff. Contributing to the accident was the pilot’s failure to confirm that the door was properly closed before departure.NTSB GAA25WA145Accident · Minor injuriesClass 5 · ForeignSikorsky S-61N · Sédjè, BeninNTSB CEN25LA067Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 · Galveston, TXThe pilot’s failure to maintain terrain clearance during the takeoff from the helipad in high and gusting wind conditions, that resulted in the right skid extension embedding in the artificial turf, and a subsequent dynamic rollover sequence.NTSB CEN25LA031Accident · Minor injuriesClass 3 · LimitedFinal reportRobinson Helicopter R22 Beta · Pearland, TXThe pilot’s failure to maintain control of the helicopter during lift off.NTSB ERA25LA034Accident · No injuriesClass 4 · LimitedFinal reportHunt Exec 162F · North East, PAThe pilot’s failure to maintain control of the helicopter during landing following an encounter with an unanticipated wind gust, which resulted in a dynamic rollover.NTSB CEN24FA325Accident · 1 fatalClass 3 · FieldPreliminary reportArrow Falcon Exporters OH-58A+ · Newton, TXOn August 23, 2024, about 1330 central daylight time, a restricted category Arrow Falcon Exporters OH-58A helicopter, N199BD was substantially damaged when it was involved in an accident near Newton, Texas. The pilot was fatally injured and one person on the…NTSB WPR24LA251Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 · Carlsbad, CAThe pilot’s failure to maintain lateral control of the helicopter while departing with a crosswind, which resulted in a dynamic rollover.NTSB WPR24LA247Accident · Minor injuriesClass 4 · LimitedFinal reportBell 407 · Stanley, IDA sudden wind shift which resulted in a rapid descent and subsequent dynamic rollover and collision into water.NTSB WPR24LA239Accident · No injuriesClass 4 · LimitedFinal reportMcdonnell Douglas Helicopter 369 · Mesa, AZThe pilot receiving instruction’s failure to maintain helicopter control during autorotation, which resulted in a dynamic rollover. Contributing to the accident was the delayed remedial action from the flight instructor.NTSB WPR24LA139Accident · Minor injuriesClass 3 · LimitedFinal reportRobinson Helicopter R22 Beta · Olympia, WAThe flight instructor’s delayed action to arrest the descending, left pedal turn while maneuvering for a low-altitude hover with the helicopter near the maximum gross weight limitation, which resulted in an impact with the ground and a dynamic rollover.NTSB ANC24LA012Accident · No injuriesClass 4 · LimitedFinal reportMcdonnell Douglas Helicopter 369E · Waialua, HIThe pilot's inability to maintain directional control after a skid got caught on a fence while he was maneuvering the helicopter for takeoff, which resulted in a dynamic roll-over.NTSB ANC24LA009Accident · Minor injuriesClass 4 · LimitedFinal reportAirbus Helicopters AS350B3 · Palmer, AKThe pilot's failure to maintain clearance from snow-covered terrain during the landing approach in flat light conditions.NTSB ERA24LA028Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R22 Beta · Ronkonkoma, NYThe student pilot’s abrupt control input and the flight instructor’s inadequate remedial action, which resulted in a dynamic rollover.NTSB WPR23LA214Accident · Minor injuriesClass 4 · LimitedFinal reportBell 206B · Filer, IDThe pilot’s improper anti-torque pedal inputs during takeoff, which resulted in a loss of helicopter control during takeoff and subsequent dynamic rollover.NTSB ERA23LA251Accident · No injuriesClass 3 · LimitedFinal reportMagniflight M24 Orion Plus · Dauphin Island, ALA partial loss of engine power due to a loss of combustion in the No. 4 cylinder for undetermined reasons.NTSB ERA23LA172Accident · Minor injuriesClass 4 · LimitedFinal reportHelicopteres Guimbal Cabri G2 · Clarksville, TNThe flight instructor’s inadequate remedial action following an abrupt control input by the student pilot, which resulted in abnormal contact with the ground and a dynamic rollover.NTSB ERA23LA114Accident · Minor injuriesClass 4 · LimitedFinal reportDegraw Richard R Summit 23 · Wauchula, FLThe pilot’s improper landing flare, which resulted in a hard landing and dynamic rollover.NTSB CEN23FA071Accident · 4 fatalClass 3 · FieldFinal reportBell 407 · Galliano, LAThe pilot’s failure to ensure the helicopter was clear of obstacles before takeoff from the helideck, which resulted in the helicopter’s right landing skid pivoting about a helideck perimeter light during takeoff and a dynamic rollover. Additionally, the…NTSB CEN23LA064Accident · Minor injuriesClass 3 · LimitedFinal reportBell 206-L4 · Gulf of Mexico (Gulf of Mexico)The pilot’s improper takeoff technique that allowed the helicopter skid to drift into a helideck light, resulting in a dynamic rollover.NTSB ERA23LA084Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R22 Beta · Gilgo-Oak Beach-Captree, NYThe flight instructor’s inadequate remedial action while supervising the student pilot’s practice autorotation in gusting wind conditions, which resulted in a dynamic rollover.NTSB ERA23LA073Accident · No injuriesClass 3 · LimitedFinal reportChilds Michael A Rotorway Exec 162-F · Titusville, FLA failure of the No. 4 exhaust valve spring retainer, which resulted in a partial loss of engine power.NTSB WPR23LA009Accident · Serious injuriesClass 4 · LimitedFinal reportBell Helicopter Textron Canada 505 · Moab, UTThe pilot’s loss of helicopter control during landing, that resulted in a dynamic roll over.NTSB ERA22LA431Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R-22 Beta · Nashville, TNA loss of tail rotor effectiveness while hovering in crosswind conditions resulting in the student pilot's loss of control of the helicopter, impact with terrain, and dynamic rollover.NTSB ERA22LA357Accident · Serious injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 · Leghighton, PAThe pilot’s improper recovery from a bounced landing on a slope, which resulted in dynamic rollover.NTSB ERA22LA328Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R22 Beta · Orlando, FLThe flight instructor’s inadequate remedial actions following the student pilot’s improper control inputs, which resulted in dynamic rollover.NTSB WPR22LA220Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Auburn, WAThe student pilot’s loss of helicopter control and the flight instructor’s delayed remedial action while providing hover training which resulted in a dynamic rollover.NTSB CEN22LA219Accident · Minor injuriesClass 4 · LimitedFinal reportBell 206B · Cameron, TXThe flight crew not maintaining lateral control of the helicopter during hovering operation which resulted in a dynamic rollover.NTSB ERA22LA236Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Nashua, NHThe flight instructor’s failure to maintain control of the helicopter during the takeoff, which resulted in a dynamic rollover.NTSB WPR22LA157Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Salt Lake City, UTThe student pilot’s failure to maintain lateral control and terrain clearance while hovering, and the flight instructor’s delayed remedial action which resulted in a dynamic rollover.NTSB WPR22LA146Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R22 · Phoenix, AZThe pilot’s failure to maintain helicopter control while on the ground when his attention was diverted, which resulted in a dynamic rollover.NTSB CEN22LA158Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R22 Beta · Garnett, KSThe pilot’s failure to maintain lateral control while hovering which resulted in a dynamic rollover.NTSB ERA22LA140Accident · Minor injuriesClass 4 · LimitedFinal reportRobinson Helicopter R22 · Fallston, MDThe student pilot's unstabilized hover, which resulted in ground contact and a dynamic rollover. Contributing to the accident was the flight instructor's inadequate supervision of the student and his delayed remedial action.NTSB ERA22LA135Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · White Plains, NYThe pilot’s failure to maintain stabilized lateral control during landing in gusty conditions which resulted in a dynamic rollover when the skids contacted the platform unevenly.NTSB CEN21LA432Accident · No injuriesClass 4 · LimitedFinal reportBell 206L-3 · Berlin, ILThe pilot’s failure to maintain control of the helicopter with a stuck skid, which resulted in a dynamic rollover.NTSB CEN21LA135Accident · Minor injuriesClass 4 · LimitedFinal reportBell OH-58 · Greensburg, LAThe pilot’s failure to maintain lateral control and terrain clearance while hovering, which resulted in a dynamic rollover.