# NTSB investigations: Robinson Helicopter R22: Loss of control in flight

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 WPR23LA043](https://openairdocs.org/ntsb/WPR23LA043.md): Robinson Helicopter R22 · Kapolei, HI · Accident · No injuries · Class 4 · Limited · Final report · Nov 11, 2022 · N948WB · Substantial damage
  > The pilot receiving instruction’s rapid reduction in throttle during hover autorotation training which resulted in a loss of control and collision with the ground.
- [NTSB CEN18FA244](https://openairdocs.org/ntsb/CEN18FA244.md): Robinson R22 · Sterling City, TX · Accident · 1 fatal · Field investigation · Final report · Jun 30, 2018 · N787SH · Destroyed
  > A loss of control during the landing approach for reasons that could not be determined based on the available information.
- [NTSB CEN17LA210](https://openairdocs.org/ntsb/CEN17LA210.md): Robinson Helicopter R22 · Kenosha, WI · Accident · Serious injuries · Limited investigation · Final report · Jun 4, 2017 · N601HA · Substantial damage
  > The pilot's loss of helicopter control during landing to a dolly.
- [NTSB WPR16LA156](https://openairdocs.org/ntsb/WPR16LA156.md): Robinson R22 · Prescott, AZ · Accident · Minor injuries · Limited investigation · Final report · Aug 2, 2016 · N22UH · Substantial damage
  > The flight instructor’s delayed remedial action to address a low rotor rpm condition, which resulted in an excessive descent rate and a subsequent hard landing.
- [NTSB GAA15CA233](https://openairdocs.org/ntsb/GAA15CA233.md): Robinson Helicopter R22 · Prescott, AZ · Accident · No injuries · Data collection · Final report · Aug 18, 2015 · N5VH · Substantial damage
  > The flight instructor's decision to turn the helicopter downwind during a hover taxi which resulted in an uncontrolled descent and impact with terrain.
- [NTSB CEN14LA313](https://openairdocs.org/ntsb/CEN14LA313.md): Robinson R22 - Beta · Moscow Mills, MO · Accident · Minor injuries · Limited investigation · Final report · Jun 19, 2014 · N784SH · Substantial damage
  > The flight instructor’s delayed remedial action to correct the student pilot’s use of an excessive descent rate during a practice autorotation, which resulted in a hard landing.
- [NTSB WPR13LA315](https://openairdocs.org/ntsb/WPR13LA315.md): Robinson Helicopter R22 · Alta, UT · Accident · Minor injuries · Limited investigation · Final report · Jul 8, 2013 · N712U · Destroyed
  > The flight instructor's decision to follow a route over mountainous terrain in conditions that exceeded the helicopter’s ability to maintain terrain clearance.
- [NTSB ERA11CA235](https://openairdocs.org/ntsb/ERA11CA235.md): Robinson R22 · Marlboro, MA · Accident · No injuries · Data collection · Final report · Apr 10, 2011 · N791SH · Substantial damage
  > The student pilot's failure to maintain directional control during takeoff.
- [NTSB LAX08CA126](https://openairdocs.org/ntsb/LAX08CA126.md): Robinson R22 Beta II · Prescott, AZ · Accident · Serious injuries · Data collection · Final report · May 2, 2008 · N331MD · Substantial damage
  > The instructor's inadequate supervision and delayed remedial action that resulted in ground contact and a 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 ('7640102')
    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" = '240' 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/240/sequence?model=7640102

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