# Fatal NTSB investigations: Lycoming TI0-540 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 CEN13FA351](https://openairdocs.org/ntsb/CEN13FA351.md): Piper PA-24-260 · La Pointe, WI · Accident · 2 fatal · Field investigation · Final report · Jun 15, 2013 · N8815P · Destroyed
  > The pilot’s failure to maintain airplane control after deciding to go around after a gear-up landing, resulting in an aerodynamic stall.
- [NTSB CHI08FA054](https://openairdocs.org/ntsb/CHI08FA054.md): Piper PA-32R-300 · Warrens, WI · Accident · 1 fatal · Field investigation · Final report · Dec 21, 2007 · N1919H · Destroyed
  > The decision by the pilot to fly into known adverse weather, and the pilot's failure to maintain control of the airplane due to spatial disorientation. Contributing factors include the clouds and the night conditions.
- [NTSB CHI96FA113](https://openairdocs.org/ntsb/CHI96FA113.md): Piper PA-32 · Milwaukee, WI · Accident · 1 fatal · Field investigation · Final report · Jan 17, 1996 · N3326Q · Destroyed
  > Inadequate maintenance and inspection in that the Airworthiness Directive which applied to the fuel pump had not been complied with. A factor was the pilot was unable to reach land.
- [NTSB CHI81FA024](https://openairdocs.org/ntsb/CHI81FA024.md): Piper PA-32 · Lyons Twp, WI · Accident · 1 fatal · Closed · Feb 2, 1981 · N300AC · Destroyed
- [NTSB CHI77FA046](https://openairdocs.org/ntsb/CHI77FA046.md): Piper PA-24 · Evansville, WI · Accident · 4 fatal · Closed · May 27, 1977 · N9326P · Destroyed

## 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."highestInjuryLevel" = 'Fatal'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41533'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41533&fatal=1&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.