# NTSB investigations, WI: Ground collision

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 CEN25LA293](https://openairdocs.org/ntsb/CEN25LA293.md): Piper PA-31T3 · Appleton, WI · Accident · No injuries · Class 4 · Limited · Final report · Jul 26, 2025 · N401VA · Substantial damage
  > The pilot’s failure to maintain control of the airplane on the ground, which resulted in a collision with a parked airplane.
- [NTSB CEN24LA294](https://openairdocs.org/ntsb/CEN24LA294.md): Mooney M20J · Appleton, WI · Incident · No injuries · Class 4 · Limited · Final report · Jul 24, 2024 · N555ED · Minor damage
  > The pilot’s failure to maintain adequate wingtip clearance while taxiing. Contributing to the accident was the ambiguous nonstandard parking at the time of the incident.
- [NTSB CEN23LA209](https://openairdocs.org/ntsb/CEN23LA209.md): Kolb Firestar SS · Lodi, WI · Accident · No injuries · Class 4 · Limited · Final report · May 29, 2023 · N994TA · Substantial damage
  > The pilot’s failure to maintain control during takeoff.
- [NTSB CEN22LA346](https://openairdocs.org/ntsb/CEN22LA346.md): Meschler Gary R RV-4 · Oshkosh, WI · Accident · No injuries · Class 4 · Limited · Final report · Jul 28, 2022 · N79KM · 2 aircraft · Substantial damage
  > The failure of the pilot of N694V (RV-8) to maintain clearance from the preceding airplane, N79KM (RV-4), while taxiing for takeoff, which resulted in an on-ground collision.
- [NTSB CEN21LA336](https://openairdocs.org/ntsb/CEN21LA336.md): Driver RV-7 · Oshkosh, WI · Accident · No injuries · Class 3 · Limited · Final report · Jul 23, 2021 · N977RV · 2 aircraft · Substantial damage
  > The RV-8 pilot’s failure to account for the position of the RV-7 behind him during the landing roll in a staggered landing formation, which resulted in a ground collision of the two airplanes. Contributing to the accident was the self-induced pressure created…
- [NTSB CEN20LA436](https://openairdocs.org/ntsb/CEN20LA436.md): Piper J3 · Hartford, WI · Accident · No injuries · Class 4 · Limited · Final report · Aug 30, 2020 · N88204 · Substantial damage
  > The pilot’s loss of situation awareness which resulted in landing in a grass area and the subsequent collision with a runway marker.

## 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 s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '200' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/200/sequence?state=WI

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