# NTSB investigations: Lycoming TVO-435-GIA, WY

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 DEN05LA137](https://openairdocs.org/ntsb/DEN05LA137.md): Bell 47G-3B-1 · Rock Springs, WY · Accident · No injuries · Limited investigation · Final report · Sep 13, 2005 · N24SD · Substantial damage
  > the pilot's failure to maintain control of the helicopter during the attempted autorotation after he experienced an engine overspeed that occurred for reasons undetermined.
- [NTSB DEN80FTC05](https://openairdocs.org/ntsb/DEN80FTC05.md): Hiller Acft UH-12D · Mckennon, WY · Accident · No injuries · Closed · Feb 8, 1980 · N31331 · Substantial damage
- [NTSB DEN70D0064](https://openairdocs.org/ntsb/DEN70D0064.md): Bell 47G3B2 · Midwest, WY · Accident · No injuries · Closed · Aug 18, 1969 · N1486W · Substantial damage
- [NTSB DEN70D0040](https://openairdocs.org/ntsb/DEN70D0040.md): Bell 47G-3B · Casper, WY · Accident · No injuries · Closed · Jul 1, 1969 · N6225N · Substantial damage
- [NTSB DEN69D0213](https://openairdocs.org/ntsb/DEN69D0213.md): Bell 47G3B1 · Albany, WY · Accident · Minor injuries · Closed · Mar 25, 1969 · N73285 · Substantial damage
- [NTSB DEN69F0010](https://openairdocs.org/ntsb/DEN69F0010.md): Bell 47G-3B · Baggs, WY · Accident · No injuries · Closed · Jun 6, 1968 · N8532F · Substantial damage
- [NTSB DEN67A0052](https://openairdocs.org/ntsb/DEN67A0052.md): Bell 47G3B1 · Cody, WY · Accident · Minor injuries · Closed · Mar 10, 1967 · N8537F · Destroyed
- [NTSB DEN67A0048](https://openairdocs.org/ntsb/DEN67A0048.md): Bell 47G3B1 · Riverton, WY · Accident · No injuries · Closed · Feb 21, 1967 · N8537F · Substantial damage
- [NTSB DEN67A0021](https://openairdocs.org/ntsb/DEN67A0021.md): Bell 47G3B1 · Old Faithful, WY · Accident · Serious injuries · Closed · Sep 15, 1966 · N73982 · Substantial damage
- [NTSB DEN67A0007](https://openairdocs.org/ntsb/DEN67A0007.md): Bell 47G3B1 · Riverton, WY · Accident · Serious injuries · Closed · Jul 20, 1966 · N1332X · Substantial damage
- [NTSB UNK64X2453](https://openairdocs.org/ntsb/UNK64X2453.md): Bell 47G3B1 · Bondurant, WY · Accident · No injuries · Closed · Jun 23, 1964 · N73914 · 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" = 'WY' 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 ('41526'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41526&state=WY

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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.