NTSB investigations, WI

9 cases where the defining event was Landing gear collapse.

Cases per year

20082026
NTSB investigations, WI per year, 2008–2026: 9 cases
20082
20101
20131
20151
20181
20211
20221
20251

Latest cases

Query with SQL
duckdb -csv -c "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 e.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.\"isDefiningEvent\" AND e.\"tier2Number\" = '094')
  ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

NTSB CEN25LA278Accident · No injuriesClass 4 · LimitedFinal reportRavin 500 · Oshkosh, WIThe failure of the left main landing gear lateral pushrod end fitting which resulted in a landing gear collapse during the landing roll.Jul 21, 2025 · C-GPDZ · Substantial damageNTSB CEN22LA188Accident · No injuriesClass 3 · LimitedFinal reportBeech B-99 · Milwaukee, WIA right main landing gear collapse due to fatigue failure of the landing gear drag leg support fitting.Apr 30, 2022 · N699CZ · Substantial damageNTSB CEN21LA147Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-23 · Oshkosh, WIThe 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.Feb 27, 2021 · N1460P · Substantial damageNTSB CEN18TA296Accident · No injuriesFinal reportFisher Dakato Hawk · Oshkosh, WIThe 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.Jul 26, 2018 · N677TS · Substantial damageNTSB CEN15LA351Accident · Minor injuriesLimited investigationFinal reportRoberts Bruce W Vans Aircraft RV 9A · Land O' Lakes, WIThe pilot’s failure to maintain a proper descent rate, which resulted in a hard landing.Jul 19, 2015 · N142DD · Substantial damageNTSB CEN13CA187Accident · No injuriesData collectionFinal reportChampion 7GCAA · Oshkosh, WIFatigue cracking and failure of the left wheel strut mount resulting in collapse of the left main landing gear during taxi.Feb 2, 2013 · N9691S · Substantial damageNTSB CEN10LA145Accident · No injuriesLimited investigationFinal reportHawker Beechcraft A36 · Milwaukee, WIThe pilot's retraction of the landing gear prior to establishing a positive climb rate.Mar 6, 2010 · N1114X · Substantial damageNTSB CHI08LA297Accident · Serious injuriesLimited investigationFinal reportPowrachute Pegasus · New London, WIThe pilot's loss of directional control during landing due to failure of the nose wheel support as a result of an inadequate weld.Sep 20, 2008 · N7084L · Minor damageNTSB CHI08LA214Accident · Minor injuriesLimited investigationFinal reportBolenbaugh Phillip William Rans S-6ES · Oshkosh, WIThe pilot's improper landing flare, which resulted in a hard landing and subsequent collapse of the nose landing gear.Jul 27, 2008 · N402PB · Substantial damage