# NTSB investigations: Lycoming TVO-435-GIA, 1977

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 SEA78FYM02](https://openairdocs.org/ntsb/SEA78FYM02.md): Bell 47G3B1 · Alsea, OR · Accident · Minor injuries · Closed · Oct 2, 1977 · N1199W · Substantial damage
- [NTSB CHI77FEC47](https://openairdocs.org/ntsb/CHI77FEC47.md): Bell 47B3 · Lake Orion, MI · Accident · Minor injuries · Closed · Sep 18, 1977 · N1575 · Substantial damage
- [NTSB CHI77DEV41](https://openairdocs.org/ntsb/CHI77DEV41.md): Continental 5A · Warrensburg, IL · Accident · No injuries · Closed · Aug 10, 1977 · N9081T · Substantial damage
- [NTSB OAK77DXQ30](https://openairdocs.org/ntsb/OAK77DXQ30.md): Bell 47G3B1 · Rubicon Spring, CA · Accident · Minor injuries · Closed · Jul 31, 1977 · N337RH · Substantial damage
- [NTSB ANC77DAG76](https://openairdocs.org/ntsb/ANC77DAG76.md): Bell 47GB3 · Talkeetna, AK · Accident · No injuries · Closed · Jun 10, 1977 · N8521F · Substantial damage
- [NTSB DEN77FTE47](https://openairdocs.org/ntsb/DEN77FTE47.md): Bell 47G3B1 · Wellington, CO · Accident · Minor injuries · Closed · May 24, 1977 · N1301X · Destroyed
- [NTSB SEA77FYP29](https://openairdocs.org/ntsb/SEA77FYP29.md): Bell 47G3B1 · Pomeroy, WA · Accident · No injuries · Closed · Apr 26, 1977 · N73919 · Substantial damage
- [NTSB SEA77FTI11](https://openairdocs.org/ntsb/SEA77FTI11.md): Bell 47G3B1 · Polson, MT · Accident · Serious injuries · Closed · Apr 17, 1977 · N12437 · Substantial damage
- [NTSB DEN77FTE31](https://openairdocs.org/ntsb/DEN77FTE31.md): Bell 47G3B2 · Greeley, CO · Accident · Serious injuries · Closed · Apr 8, 1977 · N665GD · Destroyed
- [NTSB DEN77FTE18](https://openairdocs.org/ntsb/DEN77FTE18.md): Bell 47G3B1 · Cimmaron, CO · Accident · Minor injuries · Closed · Jan 24, 1977 · N1362X · Destroyed

## 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") = 1977
  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=1977

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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.