# NTSB investigations, WI: Landing gear collapse

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 CEN26LA198](https://openairdocs.org/ntsb/CEN26LA198.md): Commander 114TC · Woodruff, WI · Accident · No injuries · Class 4 · Limited · Final report · May 23, 2026 · N114DP · Substantial damage
  > The pilot’s failure to maintain airplane control during the go-around.
- [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 CEN25LA204](https://openairdocs.org/ntsb/CEN25LA204.md): Flight Design Ctsw · Pembine, WI · Accident · No injuries · Class 4 · Limited · Final report · Jun 6, 2025 · N499CT · Substantial damage
  > The pilot’s improper flare during landing which resulted in a bounced landing.
- [NTSB CEN23LA323](https://openairdocs.org/ntsb/CEN23LA323.md): Vans RV-10 · Oshkosh, WI · Accident · No injuries · Class 4 · Limited · Final report · Jul 20, 2023 · N917CM · Substantial damage
  > The pilot’s improper landing flare which resulted in a hard landing.
- [NTSB CEN23LA229](https://openairdocs.org/ntsb/CEN23LA229.md): Piper J3C-65 · Salem, WI · Accident · Minor injuries · Class 4 · Limited · Final report · Jun 5, 2023 · N42220 · Substantial damage
  > The pilot’s improper landing flare, which resulted in a hard landing and the left main landing gear collapse.
- [NTSB CEN22LA339](https://openairdocs.org/ntsb/CEN22LA339.md): Cessna T310R · Oshkosh, WI · Accident · No injuries · Class 4 · Limited · Final report · Jul 24, 2022 · N731AJ · Substantial damage
  > The pilot’s loss of control while landing.
- [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 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 CEN18TA296](https://openairdocs.org/ntsb/CEN18TA296.md): Fisher Dakato Hawk · Oshkosh, WI · Accident · No injuries · Final report · Jul 26, 2018 · N677TS · Substantial damage
  > The failure of the left main landing gear for reasons that could not be determined, which resulted in a loss of directional control during the ground roll.
- [NTSB GAA18CA400](https://openairdocs.org/ntsb/GAA18CA400.md): Champion 8GCBC · Waunakee, WI · Accident · No injuries · Data collection · Final report · Jul 6, 2018 · N114JM · Substantial damage
  > The pilot’s failure to maintain clearance from tall corn along the edge of the airstrip during takeoff.
- [NTSB GAA17CA451](https://openairdocs.org/ntsb/GAA17CA451.md): Mark Goldberg Bearhawk Patrol · Oshkosh, WI · Accident · No injuries · Data collection · Final report · Jul 28, 2017 · N410BP · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll in crosswind conditions, which resulted in a ground loop.
- [NTSB CEN17LA224](https://openairdocs.org/ntsb/CEN17LA224.md): Mckenna SD-1A · Juneau, WI · Accident · No injuries · Limited investigation · Final report · Jun 7, 2017 · N31313 · Substantial damage
  > The pilot’s difficulty controlling the airplane due to his incorrect reinstallation of the wings, which led to a bounced precautionary landing. Contributing to the accident was the failure of the pilot and the mechanic to verify the wings’ angle of incidence.
- [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 CEN16LA206](https://openairdocs.org/ntsb/CEN16LA206.md): Beech A23-24 · Clintonville, WI · Accident · No injuries · Limited investigation · Final report · May 30, 2016 · N5771V · Substantial damage
  > The pilot’s failure to maintain the proper glidepath during the night visual approach, which resulted in impact with a runway threshold light, and his improper landing flare, which resulted in a hard landing. Contributing to the accident was the pilot's…
- [NTSB GAA15CA287](https://openairdocs.org/ntsb/GAA15CA287.md): Piper PA 24 · West Bend, WI · Accident · No injuries · Data collection · Final report · Sep 26, 2015 · N8583P · Substantial damage
  > The pilot's failure to maintain his descent rate during the landing, which resulted in a hard landing and runway excursion.
- [NTSB CEN15LA351](https://openairdocs.org/ntsb/CEN15LA351.md): Roberts Bruce W Vans Aircraft RV 9A · Land O' Lakes, WI · Accident · Minor injuries · Limited investigation · Final report · Jul 19, 2015 · N142DD · Substantial damage
  > The pilot’s failure to maintain a proper descent rate, which resulted in a hard landing.
- [NTSB GAA15CA033](https://openairdocs.org/ntsb/GAA15CA033.md): Lancair LC 40 550FG · Middleton, WI · Accident · No injuries · Data collection · Final report · Apr 1, 2015 · N777XX · Substantial damage
  > The pilot's failure to maintain directional control during landing. Contributing to the accident was the pilot's inadequate compensation for the crosswind during landing.
- [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 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.
- [NTSB CEN11LA430](https://openairdocs.org/ntsb/CEN11LA430.md): Piper PA-28-180 · Barron, WI · Accident · No injuries · Limited investigation · Final report · Jun 29, 2011 · N9002J · Substantial damage
  > The loss of engine power, which resulted from fuel exhaustion due to the pilot's inadequate in-flight planning.
- [NTSB CEN10CA421](https://openairdocs.org/ntsb/CEN10CA421.md): Nord 3202 · Oshkosh, WI · Accident · No injuries · Data collection · Final report · Jul 19, 2010 · N2256Y · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll.
- [NTSB CEN10LA145](https://openairdocs.org/ntsb/CEN10LA145.md): Hawker Beechcraft A36 · Milwaukee, WI · Accident · No injuries · Limited investigation · Final report · Mar 6, 2010 · N1114X · Substantial damage
  > The pilot's retraction of the landing gear prior to establishing a positive climb rate.
- [NTSB CEN09LA463](https://openairdocs.org/ntsb/CEN09LA463.md): Pilgrim Samuel W JR RV-6 · Oshkosh, WI · Accident · No injuries · Limited investigation · Final report · Jul 25, 2009 · N56SP · Substantial damage
  > The failure of the rudder pedal which resulted in the pilot's inability to maintain directional control of the aircraft.
- [NTSB CHI08LA297](https://openairdocs.org/ntsb/CHI08LA297.md): Powrachute Pegasus · New London, WI · Accident · Serious injuries · Limited investigation · Final report · Sep 20, 2008 · N7084L · Minor damage
  > The pilot's loss of directional control during landing due to failure of the nose wheel support as a result of an inadequate weld.
- [NTSB CHI08LA214](https://openairdocs.org/ntsb/CHI08LA214.md): Bolenbaugh Phillip William Rans S-6ES · Oshkosh, WI · Accident · Minor injuries · Limited investigation · Final report · Jul 27, 2008 · N402PB · Substantial damage
  > The pilot's improper landing flare, which resulted in a hard landing and subsequent collapse of the nose landing gear.

## 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" = '094' 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/094/sequence?state=WI

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