# NTSB investigations: Lycoming TVO-435-GIA, 1964

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 UNK65X0536](https://openairdocs.org/ntsb/UNK65X0536.md): Bell 47G2 · Yuma, AZ · Accident · Minor injuries · Closed · Nov 2, 1964 · N6712D · Substantial damage
- [NTSB UNK64X3780](https://openairdocs.org/ntsb/UNK64X3780.md): Bell 47G2 · Manson, WA · Accident · No injuries · Closed · Sep 4, 1964 · N3794G · Substantial damage
- [NTSB UNK64X2453](https://openairdocs.org/ntsb/UNK64X2453.md): Bell 47G3B1 · Bondurant, WY · Accident · No injuries · Closed · Jun 23, 1964 · N73914 · Substantial damage
- [NTSB UNK64X2017](https://openairdocs.org/ntsb/UNK64X2017.md): Bell 47G3B · Muldoon, ID · Accident · Minor injuries · Closed · May 30, 1964 · N8491E · Substantial damage
- [NTSB UNK64X0473](https://openairdocs.org/ntsb/UNK64X0473.md): Bell 47G3B1 · Little Nway, CA · Accident · 1 fatal · Closed · Feb 5, 1964 · N73909 · Destroyed
- [NTSB UNK64X0270](https://openairdocs.org/ntsb/UNK64X0270.md): Bell 47G3B1 · Shell Beachf, CA · Accident · No injuries · Closed · Jan 18, 1964 · N73919 · 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") = 1964
  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=1964

---
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.