# NTSB investigations: Wright R-1820 series, MI

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 CHI94FA262](https://openairdocs.org/ntsb/CHI94FA262.md): Grumman HU-16 · St. Ignace, MI · Accident · 1 fatal · Field investigation · Final report · Aug 2, 1994 · N7025N · Minor damage
  > The pilot's failure to follow good seaplane operating practices by taxiing with power at forward thrust, with a tailwind, at a speed that necessitated using reverse thrust to arrest the excessive speed, and the pilot's misjudgment of his distance from the…
- [NTSB CHI83LA392](https://openairdocs.org/ntsb/CHI83LA392.md): Ayres S2R-R1820 · Essexville, MI · Accident · Minor injuries · Limited investigation · Final report · Aug 23, 1983 · N4025R · Destroyed
  > While on a swath run, the acft collided with a power line & crashed in a corn field. The plt received a head injury during the accident & was unable to recall details of the occurrence. According to witnesses, he was on a northerly run & was crossing under…

## 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" = 'MI' 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=MI

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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.