# NTSB investigations: Robinson Helicopter R44: 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.

## Latest cases

- [NTSB ANC26LA051](https://openairdocs.org/ntsb/ANC26LA051.md): Robinson R44 · Pembroke Pines, FL · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Jun 13, 2026 · N336SG · Substantial damage
  > On 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 CEN25LA067](https://openairdocs.org/ntsb/CEN25LA067.md): Robinson Helicopter R44 · Galveston, TX · Accident · No injuries · Class 4 · Limited · Final report · Dec 31, 2024 · N441HQ · Substantial damage
  > The 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 WPR24LA251](https://openairdocs.org/ntsb/WPR24LA251.md): Robinson Helicopter R44 · Carlsbad, CA · Accident · Minor injuries · Class 4 · Limited · Final report · Jul 18, 2024 · N886JB · Substantial damage
  > The pilot’s failure to maintain lateral control of the helicopter while departing with a crosswind, which resulted in a dynamic rollover.
- [NTSB ERA22LA357](https://openairdocs.org/ntsb/ERA22LA357.md): Robinson Helicopter R44 · Leghighton, PA · Accident · Serious injuries · Class 4 · Limited · Final report · Aug 3, 2022 · N45CA · Substantial damage
  > The pilot’s improper recovery from a bounced landing on a slope, which resulted in dynamic rollover.
- [NTSB GAA18CA450](https://openairdocs.org/ntsb/GAA18CA450.md): Robinson R44 · Lantana, FL · Accident · Minor injuries · Data collection · Final report · Jul 27, 2018 · N479AT · Substantial damage
  > The student pilot’s improper pitch control during landing, which resulted in a dynamic rollover.
- [NTSB GAA18CA147](https://openairdocs.org/ntsb/GAA18CA147.md): Robinson Helicopter R44 · Talkeetna, AK · Accident · No injuries · Data collection · Final report · Feb 24, 2018 · N7519G · Substantial damage
  > The pilot’s selection of unsuitable terrain for landing, which resulted in a dynamic rollover.
- [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 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.

## 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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('7640120')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND 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?model=7640120

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