# NTSB investigations: Robinson Helicopter R22, AL

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 ERA13LA045](https://openairdocs.org/ntsb/ERA13LA045.md): Robinson Helicopter R22 · Alexander City, AL · Accident · Serious injuries · Limited investigation · Final report · Nov 1, 2012 · N231TM · Substantial damage
  > The pilot’s delayed decision to initiate an autorotation and her subsequent improper conduct of the autorotation, which resulted in a hard landing, after the helicopter started vibrating for reasons that could not be determined because postaccident…
- [NTSB ATL85LA010](https://openairdocs.org/ntsb/ATL85LA010.md): Robinson R22 · Hueytown, AL · Accident · No injuries · Limited investigation · Final report · Oct 13, 1984 · N90218 · Destroyed
  > The acft crashed into a river while on final approach to land. The plt reported that he allowed engine RPM to drop and at the same time applied collective pitch. The acft struck the water in a steep descent. There was no report of any failures or malfunctions.
- [NTSB ATL83FA044](https://openairdocs.org/ntsb/ATL83FA044.md): Robinson R-22 · Alabaster, AL · Accident · No injuries · Field investigation · Final report · Nov 23, 1982 · N90218 · Substantial damage
  > The pilot reported that shortly after takeoff, he noticed the rpm's began falling. He stated that he increased the throttle and lowered the collective, but the rpm's continued to decrease until the low RPM warning horn came on. An autorotative landing was…

## 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" = 'AL' 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 ('7640102'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=7640102&state=AL

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