# NTSB investigations: Lycoming IO-320 series, SD

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 CHI91LA209](https://openairdocs.org/ntsb/CHI91LA209.md): Champion 7KCAB · Hill City, SD · Accident · Minor injuries · Limited investigation · Final report · Jul 4, 1991 · N1844G · Substantial damage
  > Poor preflight planning by the pilot and over confidence in the aircrafts ability. Factors related to the accident were a high density altitude and a proper climb rate not attained.
- [NTSB MKC78FTK11](https://openairdocs.org/ntsb/MKC78FTK11.md): Piper PA-30 · Rapid City, SD · Accident · No injuries · Closed · Mar 20, 1978 · N8608Y · Substantial damage
- [NTSB MKC74FTK14](https://openairdocs.org/ntsb/MKC74FTK14.md): Piper PA-30 · Rapid City, SD · Accident · No injuries · Closed · Apr 26, 1974 · N8127Y · 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" = 'SD' 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 ('41509'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41509&state=SD

---
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.