# NTSB investigations: Main gear strut/axle/truck

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 · 86 cases

## Latest cases

- [NTSB ERA26LA280](https://openairdocs.org/ntsb/ERA26LA280.md): Waco ASO · Hamilton, OH · Accident · No injuries · Class 4 · Limited · Final report · Jul 24, 2026 · N119Y · Substantial damage
  > The separation of the right main landing gear axle, which resulted in a loss of control during the landing roll.
- [NTSB ERA26LA189](https://openairdocs.org/ntsb/ERA26LA189.md): Piper PA-34-220T · Kissimmee, FL · Accident · No injuries · Class 4 · Limited · Final report · Apr 24, 2026 · N6XT · Substantial damage
  > Fracture of the left main landing gear trunnion during landing, which resulted in a loss of directional control during landing and subsequent runway excursion.
- [NTSB CEN26LA161](https://openairdocs.org/ntsb/CEN26LA161.md): Flight Design Ctsw · Seguin, TX · Accident · No injuries · Class 4 · Limited · Final report · Apr 7, 2026 · N249CT · Substantial damage
  > The failure of the landing gear weldment that resulted in separation of the right main landing gear.
- [NTSB ANC26LA022](https://openairdocs.org/ntsb/ANC26LA022.md): Cessna A185F · Skwentna, AK · Accident · No injuries · Class 4 · Limited · Final report · Mar 28, 2026 · N94237 · Substantial damage
  > The pilot’s loss of directional control during landing roll due to contact with wind hardened snow berm and subsequent failure of main landing gear.
- [NTSB CEN25LA402](https://openairdocs.org/ntsb/CEN25LA402.md): Textron 525C · Baton Rouge, LA · Accident · No injuries · Class 4 · Limited · Final report · Sep 25, 2025 · N361MB · Substantial damage
  > The improper installation of the trunnion pin, which resulted in a failure of the right main landing gear. Contributing to the accident was the failure of maintenance personnel to follow the aircraft manufacturer’s maintenance procedures.
- [NTSB WPR25LA300](https://openairdocs.org/ntsb/WPR25LA300.md): Aeronca 7AC · Firebaugh, CA · Accident · No injuries · Class 4 · Limited · Final report · Sep 1, 2025 · N82003 · Substantial damage
  > A loss of directional control during landing due to the partial separation of the right main landing gear oleo strut from a failed weld.
- [NTSB CEN25LA185](https://openairdocs.org/ntsb/CEN25LA185.md): Cessna 401 · Arlington, TX · Accident · No injuries · Class 4 · Limited · Final report · May 22, 2025 · N3239Q · Substantial damage
  > The failure of the left landing gear system and subsequent intentional gear up landing.
- [NTSB CEN25LA089](https://openairdocs.org/ntsb/CEN25LA089.md): Luscombe 8E · Brush, CO · Accident · Minor injuries · Class 4 · Limited · Final report · Jan 27, 2025 · N1739K · Substantial damage
  > The failure of the left main landing gear forward strut.
- [NTSB ERA24LA325](https://openairdocs.org/ntsb/ERA24LA325.md): Flight Design Ctsw · Cuba, NY · Accident · No injuries · Class 4 · Limited · Final report · Jul 23, 2024 · N504CT · Substantial damage
  > A separation of the left main landing gear wheel assembly during landing.
- [NTSB CEN24LA251](https://openairdocs.org/ntsb/CEN24LA251.md): Cessna 170 · Dowagiac, MI · Accident · No injuries · Class 4 · Limited · Final report · Jul 4, 2024 · N9793A · Substantial damage
  > The pilot and flight instructor’s failure to maintain directional control during the landing roll, which resulted in a ground loop with the left main landing gear axle failing, a runway excursion, and impact with the ground.
- [NTSB CEN24LA244](https://openairdocs.org/ntsb/CEN24LA244.md): Desert Fox 1 · Ellicott, CO · Accident · Minor injuries · Class 4 · Limited · Final report · Jun 27, 2024 · N10ZR · Substantial damage
  > The pilot's decision to takeoff with a quartering tailwind and high density altitude which resulted in a runway overrun. Contributing to the accident was the failure of the right main axle mount due to the poor weld.
- [NTSB CEN24LA169](https://openairdocs.org/ntsb/CEN24LA169.md): Baby Great Lakes - · Castroville, TX · Accident · Serious injuries · Class 4 · Limited · Final report · Apr 29, 2024 · N822CH · Substantial damage
  > The failure of the right main landing gear axle due to multiple fatigue crack initiation points joining into a single larger crack.
- [NTSB WPR23LA270](https://openairdocs.org/ntsb/WPR23LA270.md): Sling Sling LSA · Palm Springs, CA · Accident · No injuries · Class 3 · Limited · Final report · Jul 11, 2023 · N294JY · Substantial damage
  > Failure of the landing gear strut during takeoff due to a preexisting cracks that were caused by a manufacturing anomaly during the composite fiber layup process.
- [NTSB ERA23LA284](https://openairdocs.org/ntsb/ERA23LA284.md): Schweizer 269C · Macclenny, FL · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 1, 2023 · N9WZ · Substantial damage
  > The improper maintenance of the landing gear dampers and main rotor elastomeric dampers, resulting in ground resonance during an unsuccessful takeoff attempt with the helicopter near its maximum gross weight for the density altitude.
- [NTSB CEN23LA227](https://openairdocs.org/ntsb/CEN23LA227.md): Kolb Twinstar · Starbuck, MN · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 2, 2023 · N1025T · Substantial damage
  > The pilot’s improper landing flare and hard landing, which resulted in the left axle fracturing from bending overstress.
- [NTSB CEN23LA217](https://openairdocs.org/ntsb/CEN23LA217.md): Piper PA-28-181 · Pellston, MI · Accident · No injuries · Class 3 · Limited · Final report · Jun 1, 2023 · N4376H · Substantial damage
  > The failure of the left main landing gear strut and clevises due to fatigue cracks that initiated at multiple casting solidification voids.
- [NTSB WPR22LA357](https://openairdocs.org/ntsb/WPR22LA357.md): Vashon Ranger R7 · Glendale, AZ · Accident · No injuries · Class 3 · Limited · Final report · Sep 27, 2022 · N151VR · Substantial damage
  > Failure of the landing gear due to material deficiencies that reduced the strength of the landing gear.
- [NTSB WPR22LA206](https://openairdocs.org/ntsb/WPR22LA206.md): Shea Pitts Special S-1C · Reno, NV · Accident · No injuries · Class 4 · Limited · Final report · Jun 6, 2022 · N52JH · Substantial damage
  > The pilot’s failure to maintain directional control during landing roll.
- [NTSB WPR22LA159](https://openairdocs.org/ntsb/WPR22LA159.md): Diamond Aircraft Ind DA 42 · Long Beach, CA · Accident · No injuries · Class 3 · Limited · Final report · Apr 19, 2022 · N822SA · Substantial damage
  > The failure of the right main landing gear brace rib for reasons that could not be determined based on available information.
- [NTSB ERA21LA246](https://openairdocs.org/ntsb/ERA21LA246.md): Honda HA-420 · Kennesaw, GA · Accident · No injuries · Class 3 · Limited · Final report · Jun 4, 2021 · N10XN · Substantial damage
  > The mechanic’s improper installation of the left main wheel assembly.
- [NTSB ERA21LA235](https://openairdocs.org/ntsb/ERA21LA235.md): Meyers Industries 200A · Marathon, FL · Accident · No injuries · Class 4 · Limited · Final report · May 26, 2021 · N489C · Substantial damage
  > The failure of the right main landing gear to fully extend during landing as a result of the underinflated right main landing gear oleo strut.
- [NTSB CEN19LA322](https://openairdocs.org/ntsb/CEN19LA322.md): Cessna 195A · Pocahontas, IA · Accident · No injuries · Class 3 · Limited · Final report · Sep 6, 2019 · N9895A · Substantial damage
  > Overload failure of the left main landing gear during landing, which resulted in a loss of directional control.
- [NTSB WPR19LA169](https://openairdocs.org/ntsb/WPR19LA169.md): Cessna 140 · Independence, OR · Accident · No injuries · Class 3 · Limited · Final report · Jun 12, 2019 · N73053 · Substantial damage
  > Fatigue failure of the right landing gear axle, which resulted in a loss of control during the landing roll.
- [NTSB CEN19LA166](https://openairdocs.org/ntsb/CEN19LA166.md): Beech E90 · Greenville, TX · Accident · No injuries · Class 3 · Limited · Final report · Jun 12, 2019 · N176TW · Substantial damage
  > The fatigue failure of the right main landing gear upper torque knee.
- [NTSB ERA19LA173](https://openairdocs.org/ntsb/ERA19LA173.md): Hughes 269B · Hampton, GA · Accident · No injuries · Class 3 · Limited · Final report · May 15, 2019 · N9422F · Substantial damage
  > Ground resonance during landing for reasons that could not be determined based on the available information.
- [NTSB ERA19LA169](https://openairdocs.org/ntsb/ERA19LA169.md): Hawker Siddeley Hunter · Newport News, VA · Accident · No injuries · Class 3 · Limited · Final report · May 9, 2019 · N343AX · Substantial damage
  > The failure of the right main landing gear due to a fatigue cracking.
- [NTSB WPR18LA272](https://openairdocs.org/ntsb/WPR18LA272.md): Smith AEROSTAR601 · Heber, UT · Accident · No injuries · Class 3 · Limited · Final report · Sep 25, 2018 · N90339 · Substantial damage
  > A recent hard landing resulted in a fracture of a joint from a cylinder to a main landing gear.
- [NTSB ERA18LA182](https://openairdocs.org/ntsb/ERA18LA182.md): Piper PA 25 · Flat Rock, AL · Accident · No injuries · Class 3 · Limited · Final report · Jun 30, 2018 · N6307Z · Substantial damage
  > The failure of the right landing gear during takeoff due to a fatigue failure, which resulted in a runway excursion.
- [NTSB ERA18LA178](https://openairdocs.org/ntsb/ERA18LA178.md): Piper PA 34-200 · Umatilla, FL · Accident · Minor injuries · Limited investigation · Final report · Jun 14, 2018 · N56213 · Substantial damage
  > Maintenance personnel ‘s failure to complete and verify the proper installation of the main landing gear (MLG) torque links’ attachment hardware, which resulted in the right MLG torque link disconnecting and the pilot’s subsequent inability to maintain…
- [NTSB WPR18LA129](https://openairdocs.org/ntsb/WPR18LA129.md): Gulfstream AM Corp Comm Div 695A · Bishop, CA · Accident · No injuries · Class 3 · Limited · Final report · Apr 26, 2018 · N79PH · Substantial damage
  > The failure of the left main landing gear upper arm forging due to fatigue cracking and subsequent overstress, which resulted in the collapse of the landing gear during the landing roll.
- [NTSB GAA18CA203](https://openairdocs.org/ntsb/GAA18CA203.md): Carr B L RV 4 · Caldwell, ID · Accident · No injuries · Data collection · Final report · Apr 6, 2018 · N66PB · Substantial damage
  > The failure of the weld on the airplane’s left main landing gear axle support strut during landing, which resulted in a loss of directional control.
- [NTSB GAA18CA180](https://openairdocs.org/ntsb/GAA18CA180.md): Anderson Darrell L Starduster TOO · Tucson, AZ · Accident · Minor injuries · Data collection · Final report · Mar 26, 2018 · N5606T · Substantial damage
  > The failure of the left main landing gear axle weld during the landing roll.
- [NTSB WPR18LA065](https://openairdocs.org/ntsb/WPR18LA065.md): Just JA30 Superstol · Kapolei, HI · Accident · No injuries · Limited investigation · Final report · Jan 13, 2018 · N413Z · Substantial damage
  > The collapse and separation of the right landing gear suspension strut due to overload.
- [NTSB CEN18LA059](https://openairdocs.org/ntsb/CEN18LA059.md): American Champion 7GCAA · Longmont, CO · Accident · No injuries · Limited investigation · Final report · Dec 20, 2017 · N519MA · Substantial damage
  > The failure of the landing gear through bolt primarily due to fatigue during a hard landing, which resulted in a landing gear collapse and runway excursion. Contributing to the accident was noncompliance with the manufacturer service letter.
- [NTSB GAA17CA552](https://openairdocs.org/ntsb/GAA17CA552.md): Hencken William Pietenpol AIR Camper · Franklin, PA · Accident · No injuries · Data collection · Final report · Sep 21, 2017 · N40WH · Substantial damage
  > The failure of the weld that connects the left main landing gear and the axle during the takeoff roll.
- [NTSB ERA17LA298](https://openairdocs.org/ntsb/ERA17LA298.md): Cessna 305 · Wurtsboro, NY · Accident · Minor injuries · Limited investigation · Final report · Aug 27, 2017 · N1834 · Substantial damage
  > A fatigue fracture of the left main landing gear axle.
- [NTSB ANC17LA022](https://openairdocs.org/ntsb/ANC17LA022.md): Piper PA 18-150 · Chugiak, AK · Accident · No injuries · Class 3 · Limited · Final report · Apr 30, 2017 · N82563 · Substantial damage
  > A fracture and collapse of the main landing gear. Contributing to the accident was corrosion to the hydrasorb lug fitting.
- [NTSB ANC16LA046](https://openairdocs.org/ntsb/ANC16LA046.md): Cessna A185 · Illiamna, AK · Accident · No injuries · Limited investigation · Final report · Jul 19, 2016 · N85CF · Substantial damage
  > The overstress fracture of the left main landing (MLG) gear axle attachment bolts and the subsequent separation of the left MLG wheel, which resulted in the pilot’s inability to control the airplane.
- [NTSB ERA16LA260](https://openairdocs.org/ntsb/ERA16LA260.md): Sorensen Danny Pitts S1 S · Somerville, TN · Accident · No injuries · Limited investigation · Final report · Jul 15, 2016 · N4714H · Substantial damage
  > The failure of the left landing gear leg due to fatigue, which resulted in a ground loop during landing. Contributing to the accident was the airplane builder's installation of a custom-built landing gear rather than the landing gear included with the…
- [NTSB WPR16LA117](https://openairdocs.org/ntsb/WPR16LA117.md): Howell Bob Howell Special · Minden, NV · Accident · No injuries · Limited investigation · Final report · May 27, 2016 · N4393H · Substantial damage
  > The failure of the right main landing gear assembly due to overstress fracture.
- [NTSB ANC16LA024](https://openairdocs.org/ntsb/ANC16LA024.md): Cessna 180 · Naknek, AK · Accident · No injuries · Limited investigation · Final report · May 3, 2016 · N6479X · Substantial damage
  > The overstress fracture and subsequent separation of the left main landing gear axle due to a hard landing, which resulted in the pilot’s inability to maintain directional control of the airplane.
- [NTSB WPR16LA068](https://openairdocs.org/ntsb/WPR16LA068.md): Cessna 140 · Independence, OR · Accident · No injuries · Limited investigation · Final report · Feb 13, 2016 · N3625V · Substantial damage
  > The failure of the left main landing gear wheel axle due to a fatigue crack.
- [NTSB WPR16LA018](https://openairdocs.org/ntsb/WPR16LA018.md): Cessna 120 · Lone Pine, CA · Accident · No injuries · Limited investigation · Final report · Oct 24, 2015 · N3124N · Substantial damage
  > The fracture of the left main landing gear (MLG) wheel axle due to fatigue, which resulted in the separation of the left MLG wheel during takeoff from a dirt airstrip.
- [NTSB WPR15LA184](https://openairdocs.org/ntsb/WPR15LA184.md): Eclipse EA500 · Sacramento, CA · Accident · No injuries · Limited investigation · Final report · Jun 12, 2015 · N508JA · Substantial damage
  > A manufacturing defect that resulted in fatigue failure of the left main landing gear trunnion.
- [NTSB ANC14LA054](https://openairdocs.org/ntsb/ANC14LA054.md): Cessna 180H · Seward, AK · Accident · No injuries · Limited investigation · Final report · Jul 14, 2014 · N9083M · Substantial damage
  > The pilot’s execution of a hard uncoordinated landing, which resulted in the overstress fracture of the right main landing gear (MLG) axle attachment bolts and the subsequent separation of the of the right MLG axle.
- [NTSB ERA14LA293](https://openairdocs.org/ntsb/ERA14LA293.md): Schweizer 269C-1 · Allentown, PA · Accident · Minor injuries · Limited investigation · Final report · Jun 17, 2014 · N152CC · Substantial damage
  > Inadequate inspection and maintenance of the helicopter’s landing gear dampers, which resulted in ground resonance during helicopter shutdown.
- [NTSB CEN14LA269](https://openairdocs.org/ntsb/CEN14LA269.md): Schweizer 269C · Temple, TX · Accident · No injuries · Limited investigation · Final report · May 31, 2014 · N902CP · Substantial damage
  > Ground resonance due to maintenance personnel’s improper inspection of the landing gear dampers, which resulted in the dampers operating outside of allowable limits.
- [NTSB WPR14LA253](https://openairdocs.org/ntsb/WPR14LA253.md): Mcdonnell Douglas Helicopter 500N · Santa Monica, CA · Accident · No injuries · Limited investigation · Final report · Apr 18, 2014 · N522GS · Substantial damage
  > The fracture of the right aft landing gear strut due to undetected fatigue cracking in an inboard rivet hole.
- [NTSB WPR14LA130](https://openairdocs.org/ntsb/WPR14LA130.md): Grumman G164 - A · Caruthers, CA · Accident · No injuries · Limited investigation · Final report · Feb 28, 2014 · N72ES · Substantial damage
  > An undetected fatigue crack in the landing gear leg, which initiated at an electrical arc-induced damage site of undetermined origin and resulted in landing gear failure. Contributing to the severity of damage to the airplane was the close proximity of an…
- [NTSB ANC13LA049](https://openairdocs.org/ntsb/ANC13LA049.md): Maule M-6-235 · Big Lake, AK · Accident · No injuries · Limited investigation · Final report · May 19, 2013 · N56464 · Substantial damage
  > The pilot’s execution of a hard landing, which resulted in the overstress fracture of the right main axle housing and the subsequent nosedown.

Next page: https://openairdocs.org/ntsb-findings/01023213/cases.md?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."mKey" IN (SELECT f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '01023213'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/01023213/cases

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