# NTSB investigations: Robinson Helicopter R22 ALPHA, OK

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 FTW86LA044](https://openairdocs.org/ntsb/FTW86LA044.md): Robinson R-22 · Mcalester, OK · Accident · No injuries · Limited investigation · Final report · Feb 8, 1986 · N8557K · Substantial damage
  > The plt was hearding cattle with the helicopter when the accident occurred. He was traveling slow and parallel with a barbed wire fence. He had to turn to the right to avoid a tree which was directly ahead of the acft. Upon making the turn he caught the tail…
- [NTSB FTW85FPJ02](https://openairdocs.org/ntsb/FTW85FPJ02.md): Robinson R-22A · Mcalester, OK · Accident · No injuries · Final report · May 8, 1985 · N8556C · Substantial damage
  > The plt was using the helicopter to round up cattle. One cow charged the helicopter and struck the tail rotor. The helicopter pitched nose down, the main rotor blade struck the ground. The helicopter came to rest in an upright position.

## 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" = 'OK' 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 ('7640104'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=7640104&state=OK

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