# NTSB investigations: Lycoming TVO-435-GIA, 1974

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 DEN75FQA24](https://openairdocs.org/ntsb/DEN75FQA24.md): Bell 47G3B2 · Albuquerque, NM · Accident · Serious injuries · Closed · Dec 17, 1974 · N4730R · Substantial damage
- [NTSB DEN75ATM08](https://openairdocs.org/ntsb/DEN75ATM08.md): Bell 47G-3B · Kamas, UT · Accident · No injuries · Closed · Dec 16, 1974 · N73218 · Substantial damage
- [NTSB OAK75DVA30](https://openairdocs.org/ntsb/OAK75DVA30.md): Bell 47G3B2 · Big Creek, CA · Accident · Minor injuries · Closed · Oct 18, 1974 · N7986J · Destroyed
- [NTSB SEA75DYG12](https://openairdocs.org/ntsb/SEA75DYG12.md): Bell 47G-2 · Ruff, WA · Accident · No injuries · Closed · Sep 11, 1974 · N3794G · Substantial damage
- [NTSB DEN75AD009](https://openairdocs.org/ntsb/DEN75AD009.md): Bell 47G3B1 · Ogden, UT · Accident · 1 fatal · Closed · Sep 5, 1974 · N73972 · Destroyed
- [NTSB OAK75DXQ19](https://openairdocs.org/ntsb/OAK75DXQ19.md): Bell 47G3B1 · Soda Sprngs, CA · Accident · No injuries · Closed · Aug 15, 1974 · N7829S · Substantial damage
- [NTSB DEN75FQD06](https://openairdocs.org/ntsb/DEN75FQD06.md): Bell 47G3B2 · Mesquite, NM · Accident · No injuries · Closed · Jul 29, 1974 · N4730R · Substantial damage
- [NTSB SEA74DTI29](https://openairdocs.org/ntsb/SEA74DTI29.md): Bell 47G3B1 · Lima, MT · Accident · No injuries · Closed · Jun 16, 1974 · N7928S · Substantial damage
- [NTSB MKC74FCQ41](https://openairdocs.org/ntsb/MKC74FCQ41.md): Bell 47G-3B · Dodge City, KS · Accident · No injuries · Closed · Jun 10, 1974 · N1380X · Substantial damage
- [NTSB DEN74DQA42](https://openairdocs.org/ntsb/DEN74DQA42.md): Bell 47G3B2 · Farmington, NM · Accident · No injuries · Closed · Apr 30, 1974 · N58131 · Substantial damage
- [NTSB LAX74DUJ75](https://openairdocs.org/ntsb/LAX74DUJ75.md): Bell 47G3B1 · Supai, AZ · Accident · No injuries · Closed · Feb 25, 1974 · N1321X · Substantial damage
- [NTSB SEA74DTI18](https://openairdocs.org/ntsb/SEA74DTI18.md): Bell 47G3B1 · Conrad, MT · Accident · No injuries · Closed · Feb 24, 1974 · N7936S · 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 year(c."eventDate") = 1974
  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&year=1974

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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.