# NTSB investigations: Piper PA-18-135, 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 CHI03LA127](https://openairdocs.org/ntsb/CHI03LA127.md): Piper PA-18-135 · Prescott, WI · Accident · Serious injuries · Limited investigation · Final report · May 15, 2003 · N2581A · Substantial damage
  > The pilot delaying the go-around and the maneuver to avoid the treeline. Factors to the accident were the treeline and the airplane's low altitude.
- [NTSB CHI94LA237](https://openairdocs.org/ntsb/CHI94LA237.md): Piper PA-18-135 · Butte Des Mort, WI · Accident · No injuries · Limited investigation · Final report · Jul 20, 1994 · N9843Q · Substantial damage
  > A delayed remedial action by the instructor. A factor in this accident was a proper airspeed not being attained by the dual student.
- [NTSB CHI81FA095](https://openairdocs.org/ntsb/CHI81FA095.md): Piper PA-18 · Chippewa Falls, WI · Accident · 2 fatal · Closed · Sep 2, 1981 · N99053 · Destroyed
- [NTSB CHI78DEP38](https://openairdocs.org/ntsb/CHI78DEP38.md): Piper PA-18 · Lake Winnebego, WI · Accident · No injuries · Closed · Jun 15, 1978 · N9843Q · 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 ('7101820'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=7101820&state=WI

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