# NTSB investigations: Pratt & Whitney PT6A 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 CHI07LA147](https://openairdocs.org/ntsb/CHI07LA147.md): Thrush S2RHG-T65 · Tyndall, SD · Accident · 1 fatal · Limited investigation · Final report · May 19, 2007 · N40097 · Destroyed
  > The pilot not maintaining altitude/clearance from a powerline while maneuvering. A factor was the low visibility associated with the thunderstorm and the powerlines.
- [NTSB CHI05LA164](https://openairdocs.org/ntsb/CHI05LA164.md): Rockwell S-2R · Bristol, SD · Accident · 1 fatal · Limited investigation · Final report · Jul 5, 2005 · N3211R · Substantial damage
  > The pilot's failure to maintain clearance with the static lines between the transmission towers. A factor associated with the accident were the static lines.
- [NTSB CHI01LA151](https://openairdocs.org/ntsb/CHI01LA151.md): Air Tractor AT-402B · Mount Vernon, SD · Accident · 1 fatal · Limited investigation · Final report · Jun 3, 2001 · N484WB · Destroyed
  > the pilot not maintaining aircraft control while maneuvering close to the ground.

## 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 ('52032', '52034'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52032&state=SD

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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.