# NTSB investigations, WI: Aircraft systems

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 2 · 70 cases

## Latest cases

- [NTSB CEN26LA262](https://openairdocs.org/ntsb/CEN26LA262.md): Beech F33A · Janesville, WI · Accident · No injuries · Class 4 · Limited · Final report · Jul 20, 2026 · N933A · Substantial damage
  > The pilot’s failure to extend the landing gear before landing.
- [NTSB CEN26LA025](https://openairdocs.org/ntsb/CEN26LA025.md): Piper PA-24-250 · Eau Claire, WI · Accident · No injuries · Class 4 · Limited · Final report · Oct 19, 2025 · N5865P · Substantial damage
  > The pilot’s failure to ensure that the landing gear was properly extended before landing. Contributing to the accident was the pilot’s unfamiliarity with the landing gear warning horn and failure to verify the gear was extended with the cockpit position…
- [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 CEN25LA287](https://openairdocs.org/ntsb/CEN25LA287.md): Aerotek Pitts S-2A · New Holstein, WI · Accident · No injuries · Class 4 · Limited · Final report · Jul 26, 2025 · N83PS · Substantial damage
  > The pilot’s loss of direction control during landing due to an unapproved tailwheel assembly and tail spring that resulted in a tailwheel shimmy and a subsequent ground loop.
- [NTSB CEN25LA278](https://openairdocs.org/ntsb/CEN25LA278.md): Ravin 500 · Oshkosh, WI · Accident · No injuries · Class 4 · Limited · Final report · Jul 21, 2025 · C-GPDZ · Substantial damage
  > The failure of the left main landing gear lateral pushrod end fitting which resulted in a landing gear collapse during the landing roll.
- [NTSB CEN25LA220](https://openairdocs.org/ntsb/CEN25LA220.md): Piper PA-24-260 · Ashland, WI · Accident · No injuries · Class 4 · Limited · Final report · Jun 24, 2025 · N8817P · Substantial damage
  > The pilot’s failure to extend the landing gear before landing and his failure to conduct the before landing checklist.
- [NTSB CEN25LA035](https://openairdocs.org/ntsb/CEN25LA035.md): De Havilland DHC-1 · East Troy, WI · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 6, 2024 · N420TD · Substantial damage
  > The pilot’s inadequate fuel management, which resulted in fuel starvation and a total loss of engine power. Contributing to the accident was the inaccurate fuel gauge.
- [NTSB CEN24LA337](https://openairdocs.org/ntsb/CEN24LA337.md): Piper PA-28-140 · East Troy, WI · Accident · No injuries · Class 3 · Limited · Final report · Sep 2, 2024 · N32435 · Substantial damage
  > The pilot/mechanic’s improper torquing of the fuel hose fitting while replacing the fuel pump, which allowed air to enter the fuel system and resulted in a loss of engine power during initial climb. Contributing to the accident was the pilot/mechanic’s…
- [NTSB CEN24LA330](https://openairdocs.org/ntsb/CEN24LA330.md): Esqual VM1 · Oshkosh, WI · Accident · No injuries · Class 4 · Limited · Final report · Aug 27, 2024 · N151GH · Substantial damage
  > The pilot’s premature rotation during takeoff which resulted in the airplane settling back to the runway and the subsequent separation of the left wheel.
- [NTSB CEN24LA288](https://openairdocs.org/ntsb/CEN24LA288.md): Piper PA-28R-180 · Ft. Atkinson, WI · Accident · No injuries · Class 4 · Limited · Final report · Jul 27, 2024 · N980BL · Substantial damage
  > The pilot’s failure to extend the landing gear before landing due to distractions and his failure to conduct the Before Landing checklist.
- [NTSB CEN24LA082](https://openairdocs.org/ntsb/CEN24LA082.md): Cessna 172N · Middleton, WI · Accident · No injuries · Class 3 · Limited · Final report · Jan 4, 2024 · N3477E · Substantial damage
  > The student pilot’s failure to maintain directional control during the takeoff roll.
- [NTSB CEN23LA322](https://openairdocs.org/ntsb/CEN23LA322.md): Ercoupe 415-D · Waupun, WI · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 23, 2023 · N415JC · Substantial damage
  > The pilot’s decision to take off without correcting a misinstalled fuel cap, which resulted in a loss of engine power due to fuel starvation caused by improper venting of the fuel system.
- [NTSB CEN23LA250](https://openairdocs.org/ntsb/CEN23LA250.md): Champion 7EC · Waunakee, WI · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 21, 2023 · N80461 · Substantial damage
  > A total loss of engine power during the initial takeoff climb due to a worn manual fuel primer pump locking mechanism, which resulted in an unlocked primer and an overly rich fuel mixture.
- [NTSB CEN23LA037](https://openairdocs.org/ntsb/CEN23LA037.md): Fairchild SA227-AT · Pewaukee, WI · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 15, 2022 · N247DH · Substantial damage
  > The flight crew’s failure to maintain adequate airspeed and their exceedance of the airplane’s critical angle of attack during the instrument approach, which resulted in an aerodynamic stall. Contributing to the accident was an undetermined anomaly in the…
- [NTSB CEN22LA302](https://openairdocs.org/ntsb/CEN22LA302.md): Pitts S1 · Sturgeon Bay, WI · Accident · Minor injuries · Class 4 · Limited · Final report · Jul 1, 2022 · N23RS · Substantial damage
  > The pilot’s failure to maintain airplane control during landing, which resulted in a runway excursion and nose over. Contributing to the accident was the pilot’s inadequate preflight inspection and the pilot’s lack of flight control system knowledge.
- [NTSB CEN22FA214](https://openairdocs.org/ntsb/CEN22FA214.md): Cessna 152 · Wauwatosa, WI · Accident · 1 fatal · Class 3 · Field · Final report · May 26, 2022 · N4978B · Substantial damage
  > The student pilot’s exceedance of the airplane’s critical angle of attack, which resulted in a stall from which the student pilot could not recover.
- [NTSB CEN22LA188](https://openairdocs.org/ntsb/CEN22LA188.md): Beech B-99 · Milwaukee, WI · Accident · No injuries · Class 3 · Limited · Final report · Apr 30, 2022 · N699CZ · Substantial damage
  > A right main landing gear collapse due to fatigue failure of the landing gear drag leg support fitting.
- [NTSB CEN22FA021](https://openairdocs.org/ntsb/CEN22FA021.md): Beech B36TC · Lena, WI · Accident · 1 fatal · Class 3 · Field · Final report · Oct 27, 2021 · N75RM · Substantial damage
  > Impairment and subsequent incapacitation of the pilot for reasons that could not be determined. The incapacitation resulted in a loss of engine power due to fuel starvation. Likely contributing was pilot hypoxia due to altitude exposure, possibly worsened by…
- [NTSB CEN21LA407](https://openairdocs.org/ntsb/CEN21LA407.md): Aeromot AMT-100 · Menomonie, WI · Accident · No injuries · Class 4 · Limited · Final report · Sep 7, 2021 · N69FW · Substantial damage
  > The pilot’s failure to extend the landing gear.
- [NTSB CEN21FA345](https://openairdocs.org/ntsb/CEN21FA345.md): Piper J3C-65 · Hartford, WI · Accident · 1 fatal · Class 3 · Field · Final report · Jul 31, 2021 · N42522 · Substantial damage
  > The flight crew’s exceedance of the airplane’s critical angle of attack during a simulated engine failure during initial climb after takeoff, which led to an aerodynamic stall/spin and loss of control. Contributing to the severity of the occupants’ injuries…
- [NTSB CEN21LA232](https://openairdocs.org/ntsb/CEN21LA232.md): Cirrus Design SR22 · Whitewater, WI · Accident · No injuries · Class 3 · Limited · Final report · May 16, 2021 · N4144B · Substantial damage
  > An inflight instrument malfunction for reasons that could not be determined based on available information, which led to the pilot’s decision to activate the airframe parachute system.
- [NTSB CEN21LA147](https://openairdocs.org/ntsb/CEN21LA147.md): Piper PA-23 · Oshkosh, WI · Accident · No injuries · Class 3 · Limited · Final report · Feb 27, 2021 · N1460P · Substantial damage
  > The failure of the nose landing gear lower drag link for reasons that could not be determined based on available information, which resulted in the collapse of the nose landing gear.
- [NTSB CEN21FA130](https://openairdocs.org/ntsb/CEN21FA130.md): Velocity Vtwin · Janesville, WI · Accident · 2 fatal · Class 3 · Field · Final report · Feb 16, 2021 · N13VT · Substantial damage
  > The exceedance of the maximum airspeed for flight with the landing gear extended, which resulted in a separation of the right main landing gear door that subsequently impacted the right propeller and resulted in a total loss of right engine power.…
- [NTSB CEN20LA179](https://openairdocs.org/ntsb/CEN20LA179.md): Cessna P210 · Burlington, WI · Accident · 1 fatal · Class 3 · Limited · Final report · May 15, 2020 · N1JA · Substantial damage
  > The pilot did not maintain a safe altitude during the visual approach, and subsequently lost control which resulted an impact with trees and terrain.
- [NTSB GAA19CA218](https://openairdocs.org/ntsb/GAA19CA218.md): Cessna 180 · Reedsburg, WI · Accident · No injuries · Data collection · Final report · Apr 20, 2019 · N59DW · Substantial damage
  > The pilot's loss of directional control and subsequent improper brake application during the landing roll, which resulted in a nose-over.
- [NTSB CEN18LA360](https://openairdocs.org/ntsb/CEN18LA360.md): Stearman A75N1(PT17) · Kenosha, WI · Accident · No injuries · Limited investigation · Final report · Aug 31, 2018 · N64604 · Substantial damage
  > The failed retaining bolt and cracked backing plate, which resulted in a shift of the brake lining to contact the brake drum and a subsequent wheel lock when the brakes were applied.
- [NTSB GAA18CA432](https://openairdocs.org/ntsb/GAA18CA432.md): Piper PA28 · Oregon, WI · Accident · No injuries · Data collection · Final report · Jul 19, 2018 · N9267H · Substantial damage
  > The pilot's improper decision to take off with a known brake malfunction, which resulted in a collision with a barn during landing on a wet runway.
- [NTSB CEN18LA200](https://openairdocs.org/ntsb/CEN18LA200.md): Irlbeck Thomas H RV 8 · Somerset, WI · Accident · No injuries · Class 3 · Limited · Final report · May 29, 2018 · N214FF · Substantial damage
  > A total loss of engine power due to damaged and disconnected electronic ignition wires from both the main and backup batteries, which resulted in a forced landing.
- [NTSB GAA18CA171](https://openairdocs.org/ntsb/GAA18CA171.md): Beech 76 · Oshkosh, WI · Accident · No injuries · Data collection · Final report · Mar 9, 2018 · N969RA · Substantial damage
  > The pilot’s failure to extend the landing gear and the flight instructor’s failure to ensure that the landing gear were extended during landing. Contributing to the accident were the pilot’s and the instructor’s improper use of checklist.
- [NTSB CEN17LA344](https://openairdocs.org/ntsb/CEN17LA344.md): Aviat A 1B · Prairie du Chien, WI · Accident · No injuries · Limited investigation · Final report · Sep 9, 2017 · N299CA · Substantial damage
  > The fatigue failure of the aileron hinge bracket tubing for reasons that could not be determined based on the available evidence.
- [NTSB GAA17CA524](https://openairdocs.org/ntsb/GAA17CA524.md): Boeing A75N1(PT17) · Oshkosh, WI · Accident · Minor injuries · Data collection · Final report · Sep 3, 2017 · N52813 · Substantial damage
  > The pilot’s overapplication of the brakes, which resulted in the biplane coming to rest inverted.
- [NTSB CEN17FA287](https://openairdocs.org/ntsb/CEN17FA287.md): Aerofab Lake LA 4 250 · Oshkosh, WI · Accident · 2 fatal · Field investigation · Final report · Jul 28, 2017 · N1400P · Substantial damage
  > The pilot's failure to properly configure the airplane for takeoff and his decision to takeoff with a tailwind in unfavorable water conditions, which resulted in the airplane entering an aerodynamic stall and the pilot losing control.
- [NTSB CEN17FA196](https://openairdocs.org/ntsb/CEN17FA196.md): Piper J3C · Chetek, WI · Accident · 1 fatal · Field investigation · Final report · May 24, 2017 · N35132 · Substantial damage
  > The pilot's failure to maintain control of the airplane while flying at a low altitude, which resulted in the airplane exceeding the critical angle of attack and a subsequent aerodynamic stall.
- [NTSB GAA17CA224](https://openairdocs.org/ntsb/GAA17CA224.md): Stinson 108 · Woodruff, WI · Accident · No injuries · Data collection · Final report · Apr 7, 2017 · N9363K · Substantial damage
  > The pilot receiving instruction's incorrect brake usage and failure to maintain directional control during the landing roll.
- [NTSB GAA16CA476](https://openairdocs.org/ntsb/GAA16CA476.md): Luscombe 8 · Juneau, WI · Accident · No injuries · Data collection · Final report · Sep 10, 2016 · N1263K · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll in gusting crosswind conditions, which resulted in a runway excursion. Contributing to the accident was the foot pad cover slipping off the right rudder pedal during the landing roll.
- [NTSB CEN16LA296](https://openairdocs.org/ntsb/CEN16LA296.md): Ryan Navion B · Manitowoc, WI · Accident · Minor injuries · Limited investigation · Final report · Jul 30, 2016 · N5294K · Substantial damage
  > A leak in the gascolator due to degraded rubber gaskets, which allowed air to enter the fuel system and resulted in fuel starvation and a total loss of engine power during takeoff.
- [NTSB CEN16LA274](https://openairdocs.org/ntsb/CEN16LA274.md): Chance Vought F4U 5 · East Troy, WI · Accident · No injuries · Limited investigation · Final report · Jul 19, 2016 · N179PT · Substantial damage
  > A failure of the O-ring in the left brake master cylinder for reasons that could not be determined, which resulted in a loss of directional control during landing.
- [NTSB CEN16LA069](https://openairdocs.org/ntsb/CEN16LA069.md): Cirrus Design SR22 · Watertown, WI · Accident · Serious injuries · Limited investigation · Final report · Dec 27, 2015 · N5PF · Substantial damage
  > The pilot’s improper in-flight fuel management, which resulted in a total loss of engine power due to fuel starvation. Contributing to the accident was the pilot’s failure to switch fuel tanks after the engine lost power, and his delayed decision to activate…
- [NTSB GAA15CA290](https://openairdocs.org/ntsb/GAA15CA290.md): Cessna 172M · Shiocton, WI · Accident · No injuries · Data collection · Final report · Sep 20, 2015 · N20079 · Substantial damage
  > The pilot's decision to continue to land at an unlighted airstrip, at night, after the landing light failed on approach, which resulted in a bounced landing, runway excursion, and collision with terrain.
- [NTSB GAA15CA177](https://openairdocs.org/ntsb/GAA15CA177.md): Centrair 101A · Hartford, WI · Accident · Minor injuries · Data collection · Final report · Jul 3, 2015 · N39KG · Substantial damage
  > The glider pilot's failure to connect the elevator to the elevator control rod during the assembly process, resulting in a loss of control, and a collision with terrain during takeoff.
- [NTSB CEN15CA072](https://openairdocs.org/ntsb/CEN15CA072.md): Cubcrafters CC11-160 · Middleton, WI · Accident · Minor injuries · Data collection · Final report · Dec 6, 2014 · N471LS · Substantial damage
  > The pilot's failure to maintain control of the airplane while braking during landing rollout.
- [NTSB CEN14LA241](https://openairdocs.org/ntsb/CEN14LA241.md): Kinsler Arthur Paul Kinsler Lancair/Mkii · Crivitz, WI · Accident · Serious injuries · Limited investigation · Final report · May 6, 2014 · N246AK · Substantial damage
  > The improper installation of the hose fuel fitting, which resulted in the fitting becoming disconnected and the subsequent loss of engine power due to fuel starvation.
- [NTSB CEN13FA440](https://openairdocs.org/ntsb/CEN13FA440.md): Phelps Kitfox III · Oshkosh, WI · Accident · No injuries · Field investigation · Final report · Jul 28, 2013 · N873RX · Substantial damage
  > The degraded fuel line, which prevented fuel from the left tank from reaching the header tank and resulted in the loss of engine power due to fuel starvation.
- [NTSB CEN13FA351](https://openairdocs.org/ntsb/CEN13FA351.md): Piper PA-24-260 · La Pointe, WI · Accident · 2 fatal · Field investigation · Final report · Jun 15, 2013 · N8815P · Destroyed
  > The pilot’s failure to maintain airplane control after deciding to go around after a gear-up landing, resulting in an aerodynamic stall.
- [NTSB CEN13LA330](https://openairdocs.org/ntsb/CEN13LA330.md): Cessna TP206B · Sturgeon Bay, WI · Accident · No injuries · Limited investigation · Final report · Jun 1, 2013 · N3350J · Substantial damage
  > The pilot’s improper reselection of the left fuel tank, which had an obstructed vent system and resulted in a total loss of engine power during the approach for landing.
- [NTSB CEN13LA216](https://openairdocs.org/ntsb/CEN13LA216.md): Cessna 172 · Wonewoc, WI · Accident · No injuries · Limited investigation · Final report · Apr 1, 2013 · N8033B · Substantial damage
  > The restricted vented fuel cap and obstructed fuel vent lines, which resulted in a total loss of engine power due to fuel starvation.
- [NTSB CEN13CA187](https://openairdocs.org/ntsb/CEN13CA187.md): Champion 7GCAA · Oshkosh, WI · Accident · No injuries · Data collection · Final report · Feb 2, 2013 · N9691S · Substantial damage
  > Fatigue cracking and failure of the left wheel strut mount resulting in collapse of the left main landing gear during taxi.
- [NTSB CEN12LA582](https://openairdocs.org/ntsb/CEN12LA582.md): Waco UPF-7 · Jim Falls, WI · Accident · No injuries · Limited investigation · Final report · Aug 27, 2012 · N32011 · Substantial damage
  > The blockage of the right fuel tank vent, which resulted in a total loss of engine power due to fuel starvation.
- [NTSB CEN12CA567](https://openairdocs.org/ntsb/CEN12CA567.md): Fantasy Air Allegro 2000 · Bear Creek, WI · Accident · No injuries · Data collection · Final report · Aug 17, 2012 · N5064E · Substantial damage
  > A malfunction of the right brake for reasons that could not be determined because of the perishable evidence, which resulted in the pilot’s inability to maintain directional control of the airplane during landing.
- [NTSB CEN12LA530](https://openairdocs.org/ntsb/CEN12LA530.md): Williams John T-51 Mustang · Oshkosh, WI · Accident · Serious injuries · Limited investigation · Final report · Aug 7, 2012 · N151TA · Substantial damage
  > The separation of an engine cooling hose from the radiator.

Next page: https://openairdocs.org/ntsb-findings/0102/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", '0102'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/0102/cases?state=WI

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