# NTSB investigations: Engineering & Research 415-C, 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 CEN26LA047](https://openairdocs.org/ntsb/CEN26LA047.md): Engineering & Research 415 · Sheboygan Falls, WI · Accident · No injuries · Class 4 · Limited · Final report · Nov 13, 2025 · N94342 · Substantial damage
  > The flight instructor’s failure to arrest the airplane’s descent rate during a takeoff simulated engine failure which resulted in a hard landing.
- [NTSB GAA19CA245](https://openairdocs.org/ntsb/GAA19CA245.md): Ercoupe 415 C · Rosendale, WI · Accident · No injuries · Data collection · Final report · May 6, 2019 · N2101H · Substantial damage
  > The pilot's selection of unsuitable terrain for an off-airport precautionary landing, which resulted in impact with a fence and a nose-over.

## 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.aircraft_model_code IN ('0420302'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=0420302&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.