# NTSB investigations: Lake LA-4-200, 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 CHI04CA219](https://openairdocs.org/ntsb/CHI04CA219.md): Lake LA4-200 · Oshkosh, WI · Accident · No injuries · Data collection · Final report · Aug 1, 2004 · N1056L · Substantial damage
  > The unsuitable rough water conditions encountered during the attempted water takeoff.
- [NTSB CHI89LA125](https://openairdocs.org/ntsb/CHI89LA125.md): Aerofab Lake LA 4-200 · Oshkosh, WI · Accident · No injuries · Limited investigation · Final report · Jul 2, 1989 · N65717 · Substantial damage
  > The pilot's encounter with unsuitable terrain (rough water) and his inability to maintain directional control.
- [NTSB CHI79FEP41](https://openairdocs.org/ntsb/CHI79FEP41.md): Aerofab LA4200 · Coloma, WI · Accident · No injuries · Closed · Apr 10, 1979 · N65702 · Substantial damage
- [NTSB CHI72FEP46](https://openairdocs.org/ntsb/CHI72FEP46.md): Lake LA-4 · Waukesha, WI · Accident · No injuries · Closed · Jun 6, 1972 · N5034L · 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.aircraft_model_code IN ('5110310'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=5110310&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.