# NTSB investigations, WI: Environmental issues

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.

Page 1 of 4 · 184 cases

## Latest cases

- [NTSB CEN26LA125](https://openairdocs.org/ntsb/CEN26LA125.md): Vans RV-12IS · Appleton, WI · Accident · No injuries · Class 4 · Limited · Final report · Feb 24, 2026 · N46TB · Substantial damage
  > The pilot’s failure to maintain proper airspeed during landing and exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall and impact with the runway. Contributing to the accident was the flight instructor’s delayed…
- [NTSB CEN26LA121](https://openairdocs.org/ntsb/CEN26LA121.md): Cessna 140 · Antigo, WI · Accident · No injuries · Class 4 · Limited · Final report · Feb 16, 2026 · N2221V · Substantial damage
  > The pilot receiving instruction’s failure to maintain directional control during the landing. Contributing to the accident was the flight instructor’s delayed remedial action.
- [NTSB CEN26LA035](https://openairdocs.org/ntsb/CEN26LA035.md): Cessna 172 · Grantsburg, WI · Accident · No injuries · Class 4 · Limited · Final report · Nov 5, 2025 · N9490H · Substantial damage
  > The collision with a white-tail deer during the landing in dark night visual conditions.
- [NTSB CEN25LA211](https://openairdocs.org/ntsb/CEN25LA211.md): Cessna U206 · Falun, WI · Accident · No injuries · Class 4 · Limited · Final report · Jun 18, 2025 · N932DB · Substantial damage
  > The pilot experiencing the featureless terrain illusion during the approach which gave the perception that the airplane was at a higher altitude over the glassy water surface than it was, resulting in the airplane impacting the water.
- [NTSB CEN25LA153](https://openairdocs.org/ntsb/CEN25LA153.md): Cessna 185 · Wausau, WI · Accident · No injuries · Class 4 · Limited · Final report · Apr 7, 2025 · N1526F · Substantial damage
  > The pilot’s failure to maintain directional control while landing in shifting wind conditions.
- [NTSB CEN25LA053](https://openairdocs.org/ntsb/CEN25LA053.md): Piper PA-28R-200 · Boscobel, WI · Accident · No injuries · Class 3 · Limited · Final report · Dec 2, 2024 · N41997 · Substantial damage
  > The ice obstruction of the engine oil breather tube and alternate air outlet, which resulted in a failure of the crankcase oil seal and loss of engine oil. Contributing to the accident was the incorrect engine oil breather tube installed in the airplane by…
- [NTSB CEN25LA024](https://openairdocs.org/ntsb/CEN25LA024.md): Pitts S-2A · Stoughton, WI · Accident · No injuries · Class 4 · Limited · Final report · Oct 19, 2024 · N11JC · Substantial damage
  > The pilot’s failure to maintain directional control during landing.
- [NTSB CEN24LA356](https://openairdocs.org/ntsb/CEN24LA356.md): Piper PA-12 · Cumberland, WI · Accident · No injuries · Class 3 · Limited · Final report · Sep 12, 2024 · N7878M · Substantial damage
  > The total loss of engine power due to carburetor icing and the pilot’s delayed use carburetor heat in weather conditions conducive to carburetor icing.
- [NTSB CEN24LA322](https://openairdocs.org/ntsb/CEN24LA322.md): Piper PA-32-260 · Chetek, WI · Accident · Minor injuries · Class 4 · Limited · Final report · Aug 14, 2024 · N3613W · Substantial damage
  > The pilot’s improper landing flare and hard landing.
- [NTSB CEN24LA299](https://openairdocs.org/ntsb/CEN24LA299.md): Cessna 177A · Palmyra, WI · Accident · No injuries · Class 4 · Limited · Final report · Aug 2, 2024 · N30433 · Substantial damage
  > The student pilot’s failure to maintain directional control during the landing with gusty wind conditions.
- [NTSB WPR24LA253](https://openairdocs.org/ntsb/WPR24LA253.md): Canadian Car & Foundry Harvard MK IV · Oshkosh, WI · Accident · No injuries · Class 4 · Limited · Final report · Jul 25, 2024 · N52494 · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll, which resulted in a ground loop.
- [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 CEN24LA275](https://openairdocs.org/ntsb/CEN24LA275.md): Bell 206B · Cuba City, WI · Accident · Minor injuries · Class 4 · Limited · Final report · Jul 21, 2024 · N67110 · Substantial damage
  > The pilot’s failure to maintain clearance from a wire during an agricultural application pass.
- [NTSB CEN24LA231](https://openairdocs.org/ntsb/CEN24LA231.md): Foskett James J CH 750 Cruiser · East Troy, WI · Accident · No injuries · Class 4 · Limited · Final report · Jun 19, 2024 · N355VT · Substantial damage
  > The pilot’s failure to maintain directional control during landing in gusting crosswind conditions.
- [NTSB CEN24LA097](https://openairdocs.org/ntsb/CEN24LA097.md): Robinson Helicopter R22 Beta · Kenosha, WI · Accident · Serious injuries · Class 4 · Limited · Final report · Jan 21, 2024 · N8350M · Substantial damage
  > The pilot’s failure to maintain control of the helicopter while landing.
- [NTSB CEN24FA024](https://openairdocs.org/ntsb/CEN24FA024.md): Lancair 320 · Manitowoc, WI · Accident · 1 fatal · Class 3 · Field · Final report · Oct 25, 2023 · N320P · Substantial damage
  > The pilot’s decision to continue the visual flight rules flight into instrument meteorological conditions and failure to maintain clearance from trees and terrain during an unapproved instrument approach. Contributing to the accident was the pilot’s…
- [NTSB CEN23FA369](https://openairdocs.org/ntsb/CEN23FA369.md): Piper J5A · Iola, WI · Accident · 1 fatal · Class 3 · Field · Final report · Aug 19, 2023 · N35417 · Substantial damage
  > The pilot’s failure to maintain control of the airplane after landing on a grass taxiway with a tailwind, which resulted in a nose over.
- [NTSB CEN23LA329](https://openairdocs.org/ntsb/CEN23LA329.md): Varga 2150A · Green Lake, WI · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 27, 2023 · N5601G · Substantial damage
  > A loss of engine power due to fuel exhaustion, which resulted from the pilot’s inadequate preflight planning.
- [NTSB CEN23LA272](https://openairdocs.org/ntsb/CEN23LA272.md): Six Chuter SR7 XL · Chetek, WI · Accident · Serious injuries · Class 4 · Limited · Final report · Jul 2, 2023 · N6365A · Substantial damage
  > The pilot’s failure to maintain aircraft control during initial climb which resulted in an impact with a pole, trees, and terrain.
- [NTSB CEN23FA239](https://openairdocs.org/ntsb/CEN23FA239.md): Mooney M20R · Watertown, WI · Accident · 2 fatal · Class 3 · Field · Final report · Jun 14, 2023 · N1025C · Destroyed
  > The pilot’s loss of control due to spatial disorientation while operating in instrument meteorological conditions. Contributing to the accident was the pilot’s impairment from the prohibited substance; however, the extent of impairment could not be determined.
- [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 CEN23LA098](https://openairdocs.org/ntsb/CEN23LA098.md): Cessna 120 · Eagle River, WI · Accident · No injuries · Class 4 · Limited · Final report · Jan 25, 2023 · N73034 · Substantial damage
  > The pilot’s decision to takeoff from an unsuitable surface which resulted in collision with an object.
- [NTSB CEN22LA441](https://openairdocs.org/ntsb/CEN22LA441.md): Piper PA-28-180 · Shell Lake, WI · Accident · No injuries · Class 4 · Limited · Final report · Sep 29, 2022 · N5152S · Substantial damage
  > A collision with a deer during landing, which resulted in substantial damage to the left wing.
- [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 CEN22LA440](https://openairdocs.org/ntsb/CEN22LA440.md): Beech C23 · Merrill, WI · Accident · No injuries · Class 4 · Limited · Final report · Jul 27, 2022 · N2240L · Substantial damage
  > The student pilot's failure to maintain adequate roll control during takeoff with a quartering tailwind.
- [NTSB CEN22LA332](https://openairdocs.org/ntsb/CEN22LA332.md): Cessna L-19E · Oshkosh, WI · Accident · Minor injuries · Class 4 · Limited · Final report · Jul 24, 2022 · N3946K · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll with a gusty crosswind.
- [NTSB CEN22LA338](https://openairdocs.org/ntsb/CEN22LA338.md): Waco Classic YMF-5C · Oshkosh, WI · Accident · No injuries · Class 4 · Limited · Final report · Jul 23, 2022 · N140W · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll with a tailwind.
- [NTSB CEN22LA337](https://openairdocs.org/ntsb/CEN22LA337.md): Cessna 180J · Oshkosh, WI · Accident · No injuries · Class 4 · Limited · Final report · Jul 22, 2022 · N669CB · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll with a gusty crosswind.
- [NTSB CEN22LA221](https://openairdocs.org/ntsb/CEN22LA221.md): Cameron Balloons Z-90 · Burlington, WI · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 2, 2022 · N65009 · Substantial damage
  > The pilot’s selection of an inappropriate landing location and his failure to avoid an oncoming freight train, which resulted in the train colliding with and dragging the balloon.
- [NTSB CEN22LA182](https://openairdocs.org/ntsb/CEN22LA182.md): Piper-Harris J3C-65 · Hartford, WI · Accident · No injuries · Class 4 · Limited · Final report · Apr 21, 2022 · N9721Y · Substantial damage
  > The flight instructor lost control of the airplane while taxiing in gusty wind conditions.
- [NTSB CEN22LA141](https://openairdocs.org/ntsb/CEN22LA141.md): Cessna 150M · Brodhead, WI · Accident · Minor injuries · Class 3 · Limited · Final report · Mar 13, 2022 · N63246 · Substantial damage
  > A loss of engine power due to the fatigue fracture of the No. 1 cylinder’s rocker shaft bosses, which resulted in a forced landing into uneven terrain.
- [NTSB CEN22LA112](https://openairdocs.org/ntsb/CEN22LA112.md): Vans RV4 · Hortonville, WI · Accident · No injuries · Class 4 · Limited · Final report · Jan 29, 2022 · N544WM · Substantial damage
  > The loss of direction control while maneuvering off the plowed surface to avoid a collision with a vehicle.
- [NTSB CEN22LA092](https://openairdocs.org/ntsb/CEN22LA092.md): Cessna 172L · Minocqua, WI · Accident · No injuries · Class 4 · Limited · Final report · Jan 3, 2022 · N4209Q · Substantial damage
  > The pilot’s loss of control during landing when the airplane encountered ice and snow on the runway.
- [NTSB CEN22FA013](https://openairdocs.org/ntsb/CEN22FA013.md): New Glasair Glastar · Waukesha, WI · Accident · 2 fatal · Class 3 · Field · Final report · Oct 12, 2021 · N628RS · Destroyed
  > The noninstrument-rated pilot’s decision to depart and continue flight into instrument meteorological conditions, which resulted in a loss of control due to spatial disorientation.
- [NTSB CEN21LA398](https://openairdocs.org/ntsb/CEN21LA398.md): Segarra Lucas JR Zenith Stoll 701 · Grantsburg, WI · Accident · No injuries · Class 4 · Limited · Final report · Sep 1, 2021 · N705L · Substantial damage
  > The pilot’s improper landing flare, which resulted in abnormal runway contact and the nose landing gear collapsing.
- [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 CEN21LA333](https://openairdocs.org/ntsb/CEN21LA333.md): Boeing E75 · Baraboo, WI · Accident · No injuries · Class 4 · Limited · Final report · Jul 23, 2021 · N51CF · Substantial damage
  > The pilot’s failure to maintain clearance from the fence while on final approach.
- [NTSB CEN21FA297](https://openairdocs.org/ntsb/CEN21FA297.md): Earthstar Gull 2000 · Curtiss, WI · Accident · 1 fatal · Class 3 · Field · Final report · Jun 30, 2021 · N1712L · Substantial damage
  > The non-instrument-rated pilot’s decision to depart into instrument meteorological conditions with dense fog and low clouds, which resulted in spatial disorientation and a loss of airplane control. Contributing to the accident was the pilot’s self-imposed…
- [NTSB CEN21LA280](https://openairdocs.org/ntsb/CEN21LA280.md): Cirrus Design SR22 · Hayward, WI · Accident · No injuries · Class 4 · Limited · Final report · Jun 18, 2021 · N729SA · Substantial damage
  > The pilot's failure to maintain directional control during landing with gusting wind.
- [NTSB CEN21LA180](https://openairdocs.org/ntsb/CEN21LA180.md): Cessna 180 · Delavan, WI · Accident · Minor injuries · Class 4 · Limited · Final report · Apr 3, 2021 · N1522C · Substantial damage
  > The pilot’s failure to maintain control of the airplane during the landing roll with gusting crosswinds, which resulted in his excessive brake input and a subsequent nose over.
- [NTSB CEN21LA127](https://openairdocs.org/ntsb/CEN21LA127.md): Cessna 172N · Prairie du Sac, WI · Accident · No injuries · Class 4 · Limited · Final report · Feb 12, 2021 · N3477E · Substantial damage
  > The student pilot’s loss of directional control during takeoff, which resulted in the collision with a snowbank. Contributing to the accident was the compacted snow conditions on the runway surface.
- [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.
- [NTSB CEN20LA329](https://openairdocs.org/ntsb/CEN20LA329.md): Piper PA22 · Burlington, WI · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 9, 2020 · N6849B · Substantial damage
  > A partial loss of engine power due to the formation of carburetor ice while on the ground, which resulted in reduced climb capability and impact with trees during the initial climb.
- [NTSB CEN20CA300](https://openairdocs.org/ntsb/CEN20CA300.md): Robinson R44 · Dickeyville, WI · Accident · No injuries · Class 4 · Data collection · Final report · Jul 20, 2020 · N570WH · Substantial damage
  > The pilot did not maintain clearance from wires during an aerial application flight.
- [NTSB CEN20CA194](https://openairdocs.org/ntsb/CEN20CA194.md): Cessna 140 · Appleton, WI · Accident · No injuries · Class 4 · Data collection · Final report · May 26, 2020 · N90023 · Substantial damage
  > The pilot's loss of control while landing a tailwheel airplane.
- [NTSB CEN20LA125](https://openairdocs.org/ntsb/CEN20LA125.md): Mitsubishi MU 2B-40 · Chilton, WI · Accident · No injuries · Class 3 · Limited · Final report · Jan 29, 2020 · N425GZ · Substantial damage
  > The pilot's decision to land on the turf runway with insufficient landing performance and his subsequent loss of control during the landing roll.
- [NTSB CEN19CA237](https://openairdocs.org/ntsb/CEN19CA237.md): North American AT 6F · Oshkosh, WI · Accident · No injuries · Data collection · Final report · Jul 24, 2019 · N7976A · Substantial damage
  > The pilot's loss of directional control during landing with a quartering tailwind, which resulted in a runway excursion and subsequent substantial damage.
- [NTSB CEN19CA227](https://openairdocs.org/ntsb/CEN19CA227.md): Vans RV-8 · Oshkosh, WI · Accident · No injuries · Data collection · Final report · Jul 20, 2019 · N143MS · Substantial damage
  > The pilot’s failure to maintain adequate spacing from the lead airplane while landing following revised landing instructions, which necessitated that the pilot conduct an improper landing flare and resulted in a hard landing.
- [NTSB CEN19LA188](https://openairdocs.org/ntsb/CEN19LA188.md): Cessna 560 · Janesville, WI · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 27, 2019 · N318RW · Minor damage
  > The passenger’s decision to unbuckle her restraints during an in-flight turbulence event, resulting in serious injury.
- [NTSB GAA19CA245](https://openairdocs.org/ntsb/GAA19CA245.md): Ercoupe 415 C · Rosendale, WI · Accident · No injuries · Data collection · Final report · May 6, 2019 · N2101H · Substantial damage
  > The pilot's selection of unsuitable terrain for an off-airport precautionary landing, which resulted in impact with a fence and a nose-over.

Next page: https://openairdocs.org/ntsb-findings/03/cases.md?state=WI&page=2

## 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 f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '03'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/03/cases?state=WI

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