# NTSB investigations: AiResearch TPE331 series, WY

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 WPR20LA054](https://openairdocs.org/ntsb/WPR20LA054.md): Mitsubishi MU2B · Big Piney, WY · Accident · No injuries · Class 3 · Limited · Final report · Dec 30, 2019 · N43866 · Substantial damage
  > The failure of the right propeller position to correspond to the throttle change when moved to the beta position for reasons that could not be determined based on available evidence.
- [NTSB GAA18CA098](https://openairdocs.org/ntsb/GAA18CA098.md): Swearingen SA227 · Rock Springs, WY · Accident · No injuries · Data collection · Final report · Jan 11, 2018 · N561UP · Substantial damage
  > The pilot's failure to maintain directional control while taxiing in gusting tailwind conditions.
- [NTSB WPR12LA256](https://openairdocs.org/ntsb/WPR12LA256.md): Ayres S2R-G6 · Riverton, WY · Accident · No injuries · Limited investigation · Final report · Jun 11, 2012 · N70WY · Substantial damage
  > An engine overspeed shortly after takeoff for reasons that could not be determined because postaccident examination revealed no mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB DEN04LA020](https://openairdocs.org/ntsb/DEN04LA020.md): Fairchild Swearingen SA227BC · Rawlins, WY · Accident · No injuries · Limited investigation · Final report · Nov 1, 2003 · N787KL · Substantial damage
  > the pilot's failure to maintain directional control during the landing roll. Contributing factors include the pilot's improper in-flight planning/decision, the icy, snow covered runway and the snow bank.
- [NTSB DEN84MA266](https://openairdocs.org/ntsb/DEN84MA266.md): Aero Commander 690 · Little America, WY · Accident · 4 fatal · Major investigation · Final report · Aug 25, 1984 · N9150N · Destroyed
  > About 10 min after takeoff at 1005 MDT, the plt was cleared to climb to FL 190. This was atc's last communication with the acft. At 1030:39, the controller attempted to contact the plt to advise that he had lost radar contact & to recycle the transponder &…
- [NTSB DEN81AA064](https://openairdocs.org/ntsb/DEN81AA064.md): Mitsubishi MU-2B · Riverton, WY · Accident · 5 fatal · Closed · Sep 6, 1981 · N3ED · Destroyed

## 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" = 'WY' 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 ('01514', '01517'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=01514&state=WY

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