# NTSB investigations: AiResearch TPE331-6-251M

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 CEN25LA304](https://openairdocs.org/ntsb/CEN25LA304.md): Ayres S2R-G6 · Slayton, MN · Accident · Serious injuries · Class 3 · Limited · Preliminary report · Aug 6, 2025 · N2239V · Substantial damage
  > On August 6, 2025, about 1300 central daylight time, a Ayres Corporation S2R-G6, airplane, registration N2239V, was substantially damaged when it was involved in an accident near Slayton, Minnesota. The pilot was seriously injured. The airplane was operated…
- [NTSB ERA16LA320](https://openairdocs.org/ntsb/ERA16LA320.md): Beech B100 · Jackson, TN · Accident · No injuries · Limited investigation · Final report · Sep 21, 2016 · N66804 · Substantial damage
  > The pilot’s improper landing flare, which resulted in a hard landing.
- [NTSB ERA14CA276](https://openairdocs.org/ntsb/ERA14CA276.md): Swearingen SA 226AT · Dayton, TN · Accident · Minor injuries · Data collection · Final report · Jun 3, 2014 · N120SC · Substantial damage
  > The pilot's failure to extend the landing gear during the approach, which resulted in a gear-up landing.
- [NTSB SEA08LA117](https://openairdocs.org/ntsb/SEA08LA117.md): Rockwell 690C · Minden, NV · Accident · No injuries · Limited investigation · Final report · May 3, 2008 · N980AK · Substantial damage
  > The collapse of both main landing gear for undetermined reasons.
- [NTSB CHI08CA074](https://openairdocs.org/ntsb/CHI08CA074.md): Swearingen SA-226AT · Ankeny, IA · Accident · No injuries · Data collection · Final report · Feb 5, 2008 · N120SC · Substantial damage
  > The pilot's failure to maintain directional control during the takeoff roll. Contributing to the accident was the snow on the runway and the snowbank.

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('01521'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=01521

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