# NTSB investigations: Alon A2, 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 CHI87LA137](https://openairdocs.org/ntsb/CHI87LA137.md): Aircoupe A-2-DEX · Iola, WI · Accident · No injuries · Limited investigation · Final report · May 31, 1987 · N6509Q · Destroyed
  > The aircraft experienced a loss of engine power shortly after takeoff and was forced to make an emergency landing next to the runway. On landing roll the nose wheel of the aircraft stuck in the ground, flipping the aircraft over onto its back. According to a…
- [NTSB CHI73FER03](https://openairdocs.org/ntsb/CHI73FER03.md): Alon A-2 · Elk Mound, WI · Accident · Minor injuries · Closed · Aug 17, 1972 · N6525Q · Substantial damage
- [NTSB CHI68D0114](https://openairdocs.org/ntsb/CHI68D0114.md): Alon A2 · Grantsburg, WI · Accident · No injuries · Closed · Jun 20, 1967 · N6363V · Substantial damage
- [NTSB CHI67D0021](https://openairdocs.org/ntsb/CHI67D0021.md): Alon A-2 · Menomonee Fls, WI · Accident · No injuries · Closed · May 28, 1966 · N6359V · Substantial damage
- [NTSB CHI66A0011](https://openairdocs.org/ntsb/CHI66A0011-201541.md): Aircoupe A-2 · Langlade, WI · Accident · 1 fatal · Closed · Jul 30, 1965 · N5480E · 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('0540102'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=0540102&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.