# NTSB investigations: Piper PA-23, 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 CEN21LA147](https://openairdocs.org/ntsb/CEN21LA147.md): Piper PA-23 · Oshkosh, WI · Accident · No injuries · Class 3 · Limited · Final report · Feb 27, 2021 · N1460P · Substantial damage
  > The failure of the nose landing gear lower drag link for reasons that could not be determined based on available information, which resulted in the collapse of the nose landing gear.
- [NTSB CHI89LA176](https://openairdocs.org/ntsb/CHI89LA176.md): Piper PA-23-160 · Eau Claire, WI · Accident · No injuries · Limited investigation · Final report · Aug 27, 1989 · N8886 · Substantial damage
  > Inadvertent retraction of the landing gear by the pilot. His habit interference and lack of experience in the type of aircraft were contributing factors.
- [NTSB CHI70D0090](https://openairdocs.org/ntsb/CHI70D0090.md): Piper PA-23 · Fond Du Lac, WI · Accident · No injuries · Closed · Jun 6, 1969 · N1227P · Substantial damage
- [NTSB CHI67D0341](https://openairdocs.org/ntsb/CHI67D0341.md): Piper PA-23 · Racine, WI · Accident · No injuries · Closed · Oct 30, 1966 · N2150P · 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 ('7102302'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=7102302&state=WI

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