# NTSB investigations: AiResearch 331 SER 605HP, OK

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 FTW85IA028](https://openairdocs.org/ntsb/FTW85IA028.md): Swearingen SA226TC · Tulsa, OK · Incident · No injuries · Incident investigation · Final report · Oct 26, 1984 · N511SS · Minor damage
  > During cruise, the crew experienced a loss of hydraulic pressure & smoke in the cockpit, then donned their oxygen masks. They used the emerg gear extension system & made a safe emerg landing. An exam revealed a cracked 2000 PSI aluminum hydraulic line had…
- [NTSB FTW84LA309](https://openairdocs.org/ntsb/FTW84LA309.md): Beech C-45-H · Mcalester, OK · Accident · No injuries · Limited investigation · Final report · Jul 12, 1984 · N399V · Substantial damage
  > About 40 miles from Mcalester arpt, the lt eng lost pwr & was shutdown. While attempting a precautionary ldg at the arptthe rt eng lost all pwr. While making an emergency descent the plt attempted to stretch the glide. The acft collided with trees 300 ft…

## 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" = 'OK' 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 ('01502'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=01502&state=OK

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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.