# NTSB investigations: Jacobs R755A series, SD

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 DEN86LA162](https://openairdocs.org/ntsb/DEN86LA162.md): Grumman G-164 · Wessington, SD · Accident · No injuries · Limited investigation · Final report · Jun 12, 1986 · N751Y · Substantial damage
  > According to the plt, during maneuvering on a swath run, the acft he was piloting encountered a downdraft, forcing the acft down until contact with the ground.
- [NTSB DEN84LA237](https://openairdocs.org/ntsb/DEN84LA237.md): Grumman G-164 · Wessington, SD · Accident · No injuries · Limited investigation · Final report · Jul 25, 1984 · N751Y · Substantial damage
  > Plt stated that during loading for aerial application, he failed to note approaching roll cloud which usually signifies localized turbulence and strong, gusting winds. On takeoff roll, wind shift noted and at 100 ft altitude, heavy turbulence was encountered.…
- [NTSB MKC74DTK15](https://openairdocs.org/ntsb/MKC74DTK15.md): Grumman G-164 · Hayes, SD · Accident · Serious injuries · Closed · May 12, 1974 · N615U · Substantial damage
- [NTSB MKC72FTK04](https://openairdocs.org/ntsb/MKC72FTK04.md): Cessna 195 · Rapid City, SD · Accident · No injuries · Closed · Aug 19, 1971 · N9820A · Substantial damage
- [NTSB MKC68D0178](https://openairdocs.org/ntsb/MKC68D0178.md): Cessna 195 · Sioux Falls, SD · Accident · No injuries · Closed · Jul 17, 1967 · N9301A · Substantial damage

## 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" = 'SD' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('35006'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=35006&state=SD

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.