# NTSB investigations: Dynamic rollover

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

Page 3 of 4 · 163 cases

## Cases, newest first

- [NTSB WPR15LA261](https://openairdocs.org/ntsb/WPR15LA261.md): Schweizer 269C · Forest Grove, OR · Accident · Minor injuries · Limited investigation · Final report · Sep 18, 2015 · N290R · Substantial damage
  > A partial loss of engine power during cruise flight for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB GAA15CA238](https://openairdocs.org/ntsb/GAA15CA238.md): Robinson Helicopter R22 Beta · Ronkonkoma, NY · Accident · Minor injuries · Data collection · Final report · Aug 19, 2015 · N86EH · Substantial damage
  > The student pilot's loss of control during a hover, which resulted in ground contact and a dynamic rollover. Contributing to the accident was the flight instructor's lack of action to remediate the student pilot's control inputs and recover aircraft control.
- [NTSB ERA15LA296](https://openairdocs.org/ntsb/ERA15LA296.md): Bell 47G 3B 1 · Camden, AL · Accident · No injuries · Limited investigation · Final report · Aug 3, 2015 · N4002G · Substantial damage
  > A failure of the helicopter's hydraulic flight control systems for reasons that could not be determined due to the fire damage, and the pilot's inability to turn off the hydraulic system to relieve control pressure.
- [NTSB CEN15CA261](https://openairdocs.org/ntsb/CEN15CA261.md): Brewer Sportcopter Votex M · Sikeston, MO · Accident · Minor injuries · Data collection · Final report · Jun 5, 2015 · N229MG · Substantial damage
  > The pilot inadvertently reducing engine power to the idle position while maneuvering at a low altitude.
- [NTSB GAA15CA032](https://openairdocs.org/ntsb/GAA15CA032.md): Robinson Helicopter R22 Beta · Fort Davis, TX · Accident · No injuries · Data collection · Final report · Apr 3, 2015 · N8363D · Substantial damage
  > The pilot's failure to maintain control of the helicopter during flight, which resulted in the helicopter impacting terrain.
- [NTSB WPR15CA119](https://openairdocs.org/ntsb/WPR15CA119.md): Robinson Helicopter R22 Beta · San Bernardino, CA · Accident · Minor injuries · Data collection · Final report · Mar 3, 2015 · N4003S · Substantial damage
  > The pilot's failure to maintain adequate clearance from the ground, which resulted in a loss of control and subsequent dynamic rollover.
- [NTSB CEN15TA017](https://openairdocs.org/ntsb/CEN15TA017.md): Airbus Helicopters AS 350 B3 · Lordsburg, NM · Accident · Minor injuries · Final report · Oct 17, 2014 · N852BP · Substantial damage
  > The pilot’s failure to maintain adequate drift control and skid clearance from the ground during takeoff, which resulted in a dynamic rollover when the aft right skid contacted a rock.
- [NTSB CEN15CA007](https://openairdocs.org/ntsb/CEN15CA007.md): Bell 206B · Atlanta, AR · Accident · Serious injuries · Data collection · Final report · Oct 3, 2014 · N4426M · Substantial damage
  > The pilot's inadequate preflight inspection when he did not remove a tie-down strap prior to takeoff, which resulted in a dynamic rollover.
- [NTSB CEN14LA520](https://openairdocs.org/ntsb/CEN14LA520.md): Robinson Helicopter R22 Beta · Albuquerque, NM · Accident · Minor injuries · Limited investigation · Final report · Sep 26, 2014 · N7026J · Substantial damage
  > The pilot's failure to maintain main rotor rpm during a pinnacle approach, which resulted in a loss of helicopter control and collision with terrain. Contributing to the accident was the pilot's decision to attempt the approach given the helicopter's weight…
- [NTSB WPR14CA373](https://openairdocs.org/ntsb/WPR14CA373.md): Bell 407 · Moab, UT · Accident · Minor injuries · Data collection · Final report · Sep 11, 2014 · N142MA · Substantial damage
  > The pilot's failure to ensure adequate clearance from terrain while landing on sloped terrain.
- [NTSB WPR14CA319](https://openairdocs.org/ntsb/WPR14CA319.md): Bell 206B · Salinas, CA · Accident · No injuries · Data collection · Final report · Jul 19, 2014 · N291SH · Substantial damage
  > The pilot's failure to ensure adequate clearance from ground obstacles during takeoff which resulted in loss of aircraft control.
- [NTSB WPR14CA256](https://openairdocs.org/ntsb/WPR14CA256.md): Robinson Helicopter R22 Beta · Long Beach, CA · Accident · No injuries · Data collection · Final report · Jun 20, 2014 · N681SH · Substantial damage
  > The pilot's failure to maintain aircraft control while maneuvering for landing.
- [NTSB WPR14LA225](https://openairdocs.org/ntsb/WPR14LA225.md): Emery Mark Rotorway 162F · Merced, CA · Accident · No injuries · Limited investigation · Final report · Jun 4, 2014 · N78291 · Destroyed
  > The helicopter pilot/owner's decision to install a belt type not recommended by the kit manufacturer in the tail rotor drive system using the incorrect tension values, which led to the belt’s in-flight failure and the subsequent loss of tail rotor drive…
- [NTSB ERA14CA259](https://openairdocs.org/ntsb/ERA14CA259.md): Brantly B 2B · Essex, MD · Accident · No injuries · Data collection · Final report · May 25, 2014 · N9023Z · Substantial damage
  > The pilot's failure to maintain helicopter control during landing resulting in a hard landing and a roll over.
- [NTSB WPR14CA196](https://openairdocs.org/ntsb/WPR14CA196.md): Bell 47G · Bakersfield, CA · Accident · No injuries · Data collection · Final report · May 18, 2014 · N16414 · Substantial damage
  > The pilot's failure to maintain aircraft control after the helicopter's skid catching on the side of a trailer during takeoff, which resulted in a dynamic rollover.
- [NTSB WPR14LA180](https://openairdocs.org/ntsb/WPR14LA180.md): Bell 47G · El Monte, CA · Accident · Minor injuries · Limited investigation · Final report · May 3, 2014 · N7895B · Substantial damage
  > A partial loss of engine power during climbout due to a malfunctioning magneto and spark plugs.
- [NTSB ERA14CA217](https://openairdocs.org/ntsb/ERA14CA217.md): Robinson Helicopter R22 Beta · Frederick, MD · Accident · Minor injuries · Data collection · Final report · May 1, 2014 · N802CP · Substantial damage
  > The student pilot's failure to maintain directional control during the hover, and the flight instructors lack of remedial action, resulting in a dynamic rollover and structural damage to the helicopter.
- [NTSB WPR14LA159](https://openairdocs.org/ntsb/WPR14LA159.md): Bell 206B III · Missoula, MT · Accident · Minor injuries · Limited investigation · Final report · Apr 4, 2014 · N43MA · Substantial damage
  > A dynamic rollover during attempted liftoff.
- [NTSB WPR14LA113](https://openairdocs.org/ntsb/WPR14LA113.md): Bell 206 · Bountiful, UT · Accident · No injuries · Limited investigation · Final report · Feb 5, 2014 · N3211N · Substantial damage
  > The pilots' inaccurate assessment of the snow depth on the landing zone, which resulted in a landing on snow deeper than that for which the helicopter was equipped and led to dynamic rollover.
- [NTSB CEN14CA108](https://openairdocs.org/ntsb/CEN14CA108.md): Robinson Helicopter R22 Beta · Beaumont, TX · Accident · No injuries · Data collection · Final report · Jan 9, 2014 · N994HV · Substantial damage
  > The student pilot not controlling the helicopter following a wind gust and the flight instructor's inadequate remedial action resulting in the helicopter rolling over on its side during a landing.
- [NTSB WPR13FA264](https://openairdocs.org/ntsb/WPR13FA264.md): Robinson Helicopter R44 II · Los Angeles, CA · Accident · Minor injuries · Field investigation · Final report · Jun 6, 2013 · N915BW · Substantial damage
  > The pilot’s loss of helicopter control following a precautionary landing, which resulted in a dynamic rollover.
- [NTSB ANC13CA041](https://openairdocs.org/ntsb/ANC13CA041.md): Bell Helicopter Textron 206L-1 · Anaktuvuk Pass, AK · Accident · No injuries · Data collection · Final report · May 1, 2013 · N1171 · Substantial damage
  > The pilot's failure to maintain lateral control while hovering over an area of snow-covered terrain, in flat light conditions, which resulted in a dynamic rollover.
- [NTSB CEN13CA053](https://openairdocs.org/ntsb/CEN13CA053.md): Robinson Helicopter R44 II · Bryan, TX · Accident · No injuries · Data collection · Final report · Nov 6, 2012 · N131AA · Substantial damage
  > The pilot’s over-correction in an attempt to stabilize the helicopter during liftoff.
- [NTSB ANC12CA111](https://openairdocs.org/ntsb/ANC12CA111.md): Robinson Helicopter R22 Beta II · Anchorage, AK · Accident · No injuries · Data collection · Final report · Sep 26, 2012 · N4171J · Substantial damage
  > The flight instructor's inadequate supervision of the student pilot during a hovering autorotation, which resulted in a dynamic rollover.
- [NTSB WPR12CA405](https://openairdocs.org/ntsb/WPR12CA405.md): Robinson Helicopter R22 Beta · Lake Newman, WA · Accident · No injuries · Data collection · Final report · Sep 7, 2012 · N212SH · Substantial damage
  > The flight instructor's failure to maintain clearance from terrain while correcting for the student pilot's failure to maintain directional control of the helicopter.
- [NTSB ANC12FA084](https://openairdocs.org/ntsb/ANC12FA084.md): Mcdonnell Douglas Helicopter 600N · Delta Junction, AK · Accident · 1 fatal · Field investigation · Final report · Aug 8, 2012 · N737TV · Substantial damage
  > The pilot’s failure to clear the left landing gear skid, which resulted in the entanglement of the left landing gear skid with a log, and his subsequent application of collective pitch, which resulted in a dynamic rollover.
- [NTSB WPR12FA298](https://openairdocs.org/ntsb/WPR12FA298.md): Robinson Helicopter R22 Beta · Murrieta, CA · Accident · 1 fatal · Field investigation · Final report · Jul 9, 2012 · N7527Y · Substantial damage
  > The pilot's failure to maintain clearance from high vegetation while making a hovering turn, which resulted in a dynamic rollover.
- [NTSB WPR12CA162](https://openairdocs.org/ntsb/WPR12CA162.md): Robinson Helicopter R44 II · Henderson, NV · Accident · No injuries · Data collection · Final report · Apr 9, 2012 · N55NZ · Substantial damage
  > The pilot did not maintain directional and yaw control of the helicopter during approach and landing, which resulted in a dynamic rollover.
- [NTSB CEN12CA191](https://openairdocs.org/ntsb/CEN12CA191.md): Bell 206L-3 · Southern Timbalier 52CA · Accident · No injuries · Data collection · Final report · Mar 12, 2012 · N104LP · Substantial damage
  > The pilot’s inadequate preflight inspection when he did not remove a tie-down strap prior to takeoff, which resulted in a dynamic rollover.
- [NTSB ANC12CA025](https://openairdocs.org/ntsb/ANC12CA025.md): Hughes 369 · Trading Bay, AK · Accident · No injuries · Data collection · Final report · Mar 11, 2012 · C-GVEB · Substantial damage
  > The pilot's selection of an unsuitable landing site in flat-light conditions, which resulted in an inadvertent dynamic rollover.
- [NTSB ERA12LA210](https://openairdocs.org/ntsb/ERA12LA210.md): Bell 206B · Titusville, FL · Accident · Minor injuries · Limited investigation · Final report · Mar 6, 2012 · N83AP · Substantial damage
  > The flight instructor's attempted takeoff in gusting wind conditions while the student pilot was adjusting her anti-torque pedals, which resulted in a dynamic rollover event.
- [NTSB ANC12LA017](https://openairdocs.org/ntsb/ANC12LA017.md): Pzl-Swidnik SW-4 · Fairbanks, AK · Accident · No injuries · Limited investigation · Final report · Jan 15, 2012 · SP-SSW · Substantial damage
  > A loss of control during a simulated hydraulic emergency, which resulted in an inadvertent dynamic rollover from the which the pilot could not recover.
- [NTSB ANC11LA108](https://openairdocs.org/ntsb/ANC11LA108.md): Eurocopter AS 350 BA · Juneau, AK · Accident · No injuries · Limited investigation · Final report · Sep 26, 2011 · N230CH · Substantial damage
  > Upslope wind conditions while the helicopter was operating at ground idle, which resulted in the helicopter rollover. Contributing to the accident was the lack of manufacturer data regarding the effect of upslope wind conditions on helicopter ground idle…
- [NTSB CEN11CA627](https://openairdocs.org/ntsb/CEN11CA627.md): Robinson Helicopter R44 · Batesville, TX · Accident · No injuries · Data collection · Final report · Aug 26, 2011 · N99FJ · Substantial damage
  > The pilot’s inadequate preflight inspection that failed to ensure all tie-down clamps were removed prior to takeoff, which resulted in the helicopter’s dynamic rollover.
- [NTSB CEN11CA524](https://openairdocs.org/ntsb/CEN11CA524.md): Texas Helicopter OH-13H/M74A · Creston, IL · Accident · Minor injuries · Data collection · Final report · Jul 28, 2011 · N10009 · Substantial damage
  > The pilot's failure to maintain adequate skid clearance from the helicopter cart during landing, resulting in a dynamic rollover.
- [NTSB CEN11CA303](https://openairdocs.org/ntsb/CEN11CA303.md): Bell 206 · Venice, LA · Accident · Minor injuries · Data collection · Final report · Apr 13, 2011 · N887T · Substantial damage
  > The pilot's improper use of the collective and cyclic control during taxi operations, which induced a dynamic rollover.
- [NTSB WPR11LA190](https://openairdocs.org/ntsb/WPR11LA190.md): Bell 47G · Torrance, CA · Accident · Minor injuries · Limited investigation · Final report · Apr 6, 2011 · N9FK · Substantial damage
  > The pilot did not maintain adequate altitude during takeoff, which resulted in ground contact and a dynamic rollover.
- [NTSB ERA11CA201](https://openairdocs.org/ntsb/ERA11CA201.md): Schweizer 269C-1 · Mount Pocono, PA · Accident · No injuries · Data collection · Final report · Mar 20, 2011 · N153HT · Substantial damage
  > The flight instructor's selection of an unsuitable landing site to practice autorotations, which resulted in an inadvertent dynamic rollover during touchdown.
- [NTSB CEN11CA213](https://openairdocs.org/ntsb/CEN11CA213.md): Robinson Helicopter R44 II · Glenwood Springs, CO · Accident · No injuries · Data collection · Final report · Mar 1, 2011 · N74816 · Substantial damage
  > The pilot’s improper takeoff procedure, which resulted in a dynamic rollover when the left skid contacted the ground.
- [NTSB CEN11CA167](https://openairdocs.org/ntsb/CEN11CA167.md): Robinson Helicopter R22 Beta · Anoka, MN · Accident · Serious injuries · Data collection · Final report · Jan 29, 2011 · N7195B · Substantial damage
  > The student pilot's control inputs that resulted in an inadvertent dynamic rollover and the CFI's inadequate supervision of the flight.
- [NTSB WPR11CA011](https://openairdocs.org/ntsb/WPR11CA011.md): Robinson Helicopter R22 Beta · Long Beach, CA · Accident · Serious injuries · Data collection · Final report · Oct 12, 2010 · N853DS · Substantial damage
  > The student pilot's failure to maintain an adequate drift control and skid clearance from the ground and the CFI's inadequate supervision while hovering, resulting in dynamic rollover.
- [NTSB WPR10CA478](https://openairdocs.org/ntsb/WPR10CA478.md): Robinson R22 · Portland, OR · Accident · No injuries · Data collection · Final report · Sep 30, 2010 · N856HA · Substantial damage
  > The student pilot's decision to hover-taxi behind a jet, resulting in the helicopter encountering jet wash and rolling over.
- [NTSB WPR10LA458](https://openairdocs.org/ntsb/WPR10LA458.md): Robinson Helicopter R44 II · Mammoth, CA · Accident · Serious injuries · Limited investigation · Final report · Sep 16, 2010 · N2153S · Substantial damage
  > Dynamic rollover of the helicopter during a precautionary landing.
- [NTSB CEN10CA537](https://openairdocs.org/ntsb/CEN10CA537.md): Lewis Brandon Scott Exterminator · Rockford, IL · Accident · Minor injuries · Data collection · Final report · Sep 12, 2010 · N815SL · Substantial damage
  > The pilot's failure to maintain control of the gyrocopter while practicing takeoffs and landings.
- [NTSB CEN10LA477](https://openairdocs.org/ntsb/CEN10LA477.md): Bell 206B · Rocky Mount, MO · Accident · No injuries · Limited investigation · Final report · Aug 13, 2010 · N54BE · Substantial damage
  > A dynamic rollover inadvertently induced by the pilot during landing.
- [NTSB ERA10CA319](https://openairdocs.org/ntsb/ERA10CA319.md): Robinson Helicopter R22 Beta · West Palm Beach, FL · Accident · No injuries · Data collection · Final report · Jun 19, 2010 · N7988H · Destroyed
  > The CFI's failure to prevent ground contact during hover, which resulted in a dynamic rollover.
- [NTSB ANC10CA040](https://openairdocs.org/ntsb/ANC10CA040.md): Robinson Helicopter R44 · Seward, AK · Accident · No injuries · Data collection · Final report · May 15, 2010 · N81191 · Substantial damage
  > The pilot's failure to maintain clearance from snow-covered terrain while hovering in flat light conditions, which resulted in a dynamic rollover.
- [NTSB ERA10CA242](https://openairdocs.org/ntsb/ERA10CA242.md): Seymour Robert M Rotorway 162F · Dallas, GA · Accident · No injuries · Data collection · Final report · Apr 23, 2010 · N831MS · Substantial damage
  > The student pilot's failure to maintain control of the helicopter during landing resulting in a roll over.
- [NTSB CEN10CA156](https://openairdocs.org/ntsb/CEN10CA156.md): Robinson Helicopter R22 Beta · Houston, TX · Accident · No injuries · Data collection · Final report · Mar 13, 2010 · N822SH · Substantial damage
  > The student pilot's loss of directional control during takeoff, resulting in a dynamic rollover of the helicopter.
- [NTSB WPR10CA100](https://openairdocs.org/ntsb/WPR10CA100.md): Bell 206B · Kalispell, MT · Accident · No injuries · Data collection · Final report · Jan 7, 2010 · N127TP · Substantial damage
  > The pilot's failure to maintain lateral drift control during landing.

Next page: https://openairdocs.org/ntsb-events/231/sequence.md?page=4

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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
```

This list as a web page: https://openairdocs.org/ntsb-events/231/sequence?page=3

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