# NTSB investigations: Robinson Helicopter R22: Low altitude operation/event

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 ERA22LA140](https://openairdocs.org/ntsb/ERA22LA140.md): Robinson Helicopter R22 · Fallston, MD · Accident · Minor injuries · Class 4 · Limited · Final report · Mar 1, 2022 · N786SH · Substantial damage
  > The 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 CEN20CA230](https://openairdocs.org/ntsb/CEN20CA230.md): Robinson R22 · El Campo, TX · Accident · No injuries · Class 4 · Data collection · Final report · Jun 16, 2020 · N797SH · Substantial damage
  > The pilot's failure to maintain adequate clearance from the rice vegetation, which resulted in the helicopter's impact with terrain.
- [NTSB GAA20CA060](https://openairdocs.org/ntsb/GAA20CA060.md): Robinson R22 · Smoketown, PA · Accident · No injuries · Data collection · Final report · Nov 4, 2019 · N8560A · Substantial damage
  > The student pilot's improper cyclic input while hovering and the flight instructor's delayed remedial action, which resulted in a dynamic rollover.
- [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" = '220' 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/220/sequence?model=7640102

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