# NTSB investigations: Wright R-1820 series, MN

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 CEN18LA349](https://openairdocs.org/ntsb/CEN18LA349.md): North American T-28B · Minneapolis, MN · Accident · Serious injuries · Limited investigation · Final report · Aug 23, 2018 · N215SF · Destroyed
  > The fire during approach for reasons that could not be determined based on the available evidence, which resulted in impact with terrain during approach for a precautionary landing.
- [NTSB CEN17LA250](https://openairdocs.org/ntsb/CEN17LA250.md): North American T-28A · Moorhead, MN · Accident · 1 fatal · Limited investigation · Final report · Jul 2, 2017 · N9103F · Destroyed
  > Controlled descent into terrain due to engine issues, the reason for which could not be determined because examination of the engine revealed no evidence of malfunctions or failures that would have precluded normal operation.
- [NTSB CHI03LA036](https://openairdocs.org/ntsb/CHI03LA036.md): North American T-28B · Glenwood, MN · Accident · 2 fatal · Limited investigation · Final report · Dec 10, 2002 · N114DH · Destroyed
  > The altitude/clearance not maintained by the pilot-in-command. The low altitude maneuvering by the pilot-in-command was a contributing factor.

## 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" = 'MN' 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 ('67020'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=67020&state=MN

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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.