# NTSB investigations: Lycoming R680E series, WI

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 CEN13CA457](https://openairdocs.org/ntsb/CEN13CA457.md): Stearman A75 · Appleton, WI · Accident · No injuries · Data collection · Final report · Aug 1, 2013 · N234X · Substantial damage
  > The pilot’s inadequate compensation for the crosswind, which resulted in a loss of directional control.
- [NTSB CHI83FA362](https://openairdocs.org/ntsb/CHI83FA362.md): Grumman Scan Type 30 · Fond Du Lac, WI · Accident · Minor injuries · Field investigation · Final report · Aug 5, 1983 · N7775C · Destroyed
  > After takeoff, the aircrew flew to the southern end of lake winnebago where they made several uneventful water landings. They estimated that the wind was from the northeast at 5 to 6 KTS. The water was described as smooth with only small ripples. On the 6th…
- [NTSB CHI75FEP25](https://openairdocs.org/ntsb/CHI75FEP25.md): Stinson V-77 · Belleville, WI · Accident · No injuries · Closed · Sep 28, 1974 · N69856 · Substantial damage
- [NTSB CHI71DDJ26](https://openairdocs.org/ntsb/CHI71DDJ26.md): Stinson V-77 · Neenah, WI · Accident · No injuries · Closed · Sep 22, 1970 · N69856 · Substantial damage

## 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" = 'WI' 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 ('41545'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41545&state=WI

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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.