# NTSB investigations: Robinson Helicopter R22 BETA, CO

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 CEN09CA067](https://openairdocs.org/ntsb/CEN09CA067.md): Robinson Helicopter R22 Beta II · Erie, CO · Accident · No injuries · Data collection · Final report · Nov 19, 2008 · N221DS · Substantial damage
  > the pilot's improper flare during the practice autorotation which resulted in a hard landing. Contributing factors were the flight instructor's delayed remedial action and inadequate supervision.
- [NTSB DEN08CA046](https://openairdocs.org/ntsb/DEN08CA046.md): Robinson R22 Beta · Pueblo, CO · Accident · No injuries · Data collection · Final report · Dec 21, 2007 · N844SH · Substantial damage
  > the pilot's failure to maintain aircraft control resulting in a hard landing.
- [NTSB DEN07CA131](https://openairdocs.org/ntsb/DEN07CA131.md): Robinson Helicopter R22 Beta · Erie, CO · Accident · No injuries · Data collection · Final report · Jul 31, 2007 · N7508Y · Substantial damage
  > The student pilot's failure to maintain rotor rpm resulting in a loss of aircraft control during a simulated 180 degree auto-rotation. Contributing to the accident was the inadequate flight status supervision by the flight instructor and the student pilot's…
- [NTSB DEN07CA072](https://openairdocs.org/ntsb/DEN07CA072.md): Robinson R22 Beta · Broomfield, CO · Accident · No injuries · Data collection · Final report · Mar 13, 2007 · N7681H · Substantial damage
  > The instructor's failure to maintain aircraft control. A contributing factor was the windshear.
- [NTSB DEN99LA058](https://openairdocs.org/ntsb/DEN99LA058.md): Robinson R22 Beta · Englewood, CO · Accident · No injuries · Limited investigation · Final report · Mar 25, 1999 · N8354Z · Substantial damage
  > The flight instructor allowed the rotor rpm to decay during an autorotation which resulted in a hard landing.

## 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."eventStateOrRegion" = 'CO' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('7640110', '7640103'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=7640110&state=CO

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