# NTSB investigations: Lycoming 0-235 series, 1981, 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 CHI82DEP14](https://openairdocs.org/ntsb/CHI82DEP14.md): Cessna 152 · Pewaukee, WI · Accident · No injuries · Closed · Dec 16, 1981 · N6464L · Substantial damage
- [NTSB CHI82DEP11](https://openairdocs.org/ntsb/CHI82DEP11.md): Cessna 152 · Monroe, WI · Accident · No injuries · Closed · Nov 29, 1981 · N47808 · Substantial damage
- [NTSB CHI81DEP07](https://openairdocs.org/ntsb/CHI81DEP07.md): Bellanca 7ECA · Neenah, WI · Accident · No injuries · Closed · Oct 27, 1981 · N1195E · Substantial damage
- [NTSB CHI82DEP06](https://openairdocs.org/ntsb/CHI82DEP06.md): Cessna 152 · Monroe, WI · Accident · No injuries · Closed · Oct 24, 1981 · N4609B · Substantial damage
- [NTSB CHI81DEP33](https://openairdocs.org/ntsb/CHI81DEP33.md): Cessna 152 · Milwaukee, WI · Accident · No injuries · Closed · Jul 11, 1981 · N5355P · Substantial damage
- [NTSB CHI81DEP28](https://openairdocs.org/ntsb/CHI81DEP28.md): Cessna 152 · Pewaukee, WI · Accident · No injuries · Closed · Jun 26, 1981 · N48990 · Substantial damage
- [NTSB CHI81FEP19](https://openairdocs.org/ntsb/CHI81FEP19.md): Piper PA-12 · Spring Green, WI · Accident · No injuries · Closed · May 25, 1981 · N78459 · Substantial damage
- [NTSB CHI81DER34](https://openairdocs.org/ntsb/CHI81DER34.md): Cessna 152 · Boyceville, WI · Accident · No injuries · Closed · May 1, 1981 · N67613 · Substantial damage
- [NTSB CHI81DEP15](https://openairdocs.org/ntsb/CHI81DEP15.md): Cessna 152 · Middleton, WI · Accident · No injuries · Closed · Apr 7, 1981 · N4777H · Substantial damage
- [NTSB CHI81DEP08](https://openairdocs.org/ntsb/CHI81DEP08.md): Cessna 152 · Baraboo, WI · Accident · No injuries · Closed · Jan 15, 1981 · N65549 · 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 year(c."eventDate") = 1981
  AND 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 ('41505'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41505&state=WI&year=1981

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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.