# NTSB investigations: Lycoming VO-435 series, SC

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 ATL83LA011](https://openairdocs.org/ntsb/ATL83LA011.md): Tomcat MK68 · Cope, SC · Accident · No injuries · Limited investigation · Final report · Oct 15, 1982 · N9080T · Destroyed
  > Before starting his takeoff from a trailer, the pilot failed to insure that his helper had released the right rear tiedown chain. During lift-off, the helicopter raised the trailer about 2 to 3 ft before the chain. Broke. Simultaneously, the helicopter was…
- [NTSB ATL80DLG12](https://openairdocs.org/ntsb/ATL80DLG12.md): Texas Heli M-74 · Walterboro, SC · Accident · No injuries · Closed · May 30, 1980 · N38099 · Substantial damage
- [NTSB MIA76FLG13](https://openairdocs.org/ntsb/MIA76FLG13.md): Bell 47G-2 · Elliott, SC · Accident · Minor injuries · Closed · Aug 26, 1975 · N6711D · Substantial damage
- [NTSB MIA74D1011](https://openairdocs.org/ntsb/MIA74D1011.md): Bell 47G-2 · Dalzell, SC · Accident · Minor injuries · Closed · Aug 31, 1973 · N6711D · Substantial damage
- [NTSB MIA73FLG07](https://openairdocs.org/ntsb/MIA73FLG07.md): Bell 47G-2 · Pinewood, SC · Accident · No injuries · Closed · Jul 22, 1972 · N6711D · 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" = 'SC' 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 ('41525'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41525&state=SC

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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.