# NTSB investigations: Gear collapsed

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 3 of 6 · 285 cases

## Cases, newest first

- [NTSB MIA00LA072](https://openairdocs.org/ntsb/MIA00LA072.md): Aeronca 7AC · Palmetto, FL · Accident · No injuries · Limited investigation · Final report · Jan 19, 2000 · N82029 · Substantial damage
  > Failure for undetermined reasons of the right main landing gear strut during landing resulting in collapse of the right main landing gear.
- [NTSB SEA00LA024](https://openairdocs.org/ntsb/SEA00LA024.md): Piper PA-12 · Goldendale, WA · Accident · No injuries · Limited investigation · Final report · Nov 28, 1999 · N7243V · Substantial damage
  > The pilot's failure to maintain directional control. A factor was a rock just off the edge of the runway surface.
- [NTSB ATL00LA013](https://openairdocs.org/ntsb/ATL00LA013.md): Beech BE36 · Daytona Beach, FL · Accident · No injuries · Limited investigation · Final report · Nov 14, 1999 · N3089A · Substantial damage
  > The collapse of the main landing gear for undetermined reasons.
- [NTSB ATL00LA010](https://openairdocs.org/ntsb/ATL00LA010.md): Cessna 310Q · Jacksonville, FL · Accident · No injuries · Limited investigation · Final report · Nov 10, 1999 · N310GC · Substantial damage
  > The failure of the left main landing gear down locking mechanism for undetermined reasons.
- [NTSB MIA00LA023](https://openairdocs.org/ntsb/MIA00LA023.md): Piper PA-34-200 · Olive Branch, MS · Accident · No injuries · Limited investigation · Final report · Nov 8, 1999 · N56676 · Substantial damage
  > The private-rated student pilots inadvertent retraction of the main landing gear during a touch-and-go landing. Contributing to the accident was the flight instructors improper supervision of the dual student.
- [NTSB MIA00LA016](https://openairdocs.org/ntsb/MIA00LA016.md): Cessna 152 · Cornelia, GA · Accident · No injuries · Limited investigation · Final report · Oct 28, 1999 · N5389Q · Substantial damage
  > the pilot misjudged the flare, causing the airplane to porpoise, and subsequently impact with the runway
- [NTSB CHI00LA010](https://openairdocs.org/ntsb/CHI00LA010.md): Cessna 172G · Cambridge, MN · Accident · No injuries · Limited investigation · Final report · Oct 15, 1999 · N4621L · Substantial damage
  > the fractured main landing gear due to the improper maintenance by an unknown person(s) and the inadequate annual inspection by an unqualified person.
- [NTSB ANC00LA002](https://openairdocs.org/ntsb/ANC00LA002.md): Cessna A185E · Yakutat, AK · Accident · No injuries · Limited investigation · Final report · Oct 7, 1999 · N85CG · Substantial damage
  > The pilot's selection of an unsuitable landing area. A factor associated with the accident was soft terrain.
- [NTSB NYC99LA230](https://openairdocs.org/ntsb/NYC99LA230.md): Cessna 182 · Pepperell, MA · Accident · No injuries · Limited investigation · Final report · Sep 18, 1999 · N2001G · Substantial damage
  > A landing gear bolt failure for undetermined reasons.
- [NTSB NYC99LA226](https://openairdocs.org/ntsb/NYC99LA226.md): Piper PA-22-108 · Manassas, VA · Accident · No injuries · Limited investigation · Final report · Sep 12, 1999 · N5125Z · Substantial damage
  > The pilot's failure to recover from a sideslip maneuver, and flare the airplane before touchdown.
- [NTSB MIA99LA248](https://openairdocs.org/ntsb/MIA99LA248.md): Douglas DC3C-S4C4G · Charlotte, NC · Accident · No injuries · Limited investigation · Final report · Jul 22, 1999 · N79017 · Substantial damage
  > the pilot-in-command did not use the check list which resulted in the right main landing gear collapsing.
- [NTSB LAX99LA227](https://openairdocs.org/ntsb/LAX99LA227.md): Cessna 120 · Chino, CA · Accident · No injuries · Limited investigation · Final report · Jun 25, 1999 · N2651N · Substantial damage
  > A preexisting fatigue fracture of the right axle.
- [NTSB SEA99LA088](https://openairdocs.org/ntsb/SEA99LA088.md): Ryan Navion B · Klamath Falls, OR · Accident · No injuries · Limited investigation · Final report · Jun 17, 1999 · N870DR · Substantial damage
  > The pilot's failure to reinstall the engine oil filler cap during preflight, resulting in engine oil loss and the necessity for an immediate landing.
- [NTSB LAX99LA241](https://openairdocs.org/ntsb/LAX99LA241.md): Rockwell 690B · Monterey, CA · Accident · No injuries · Limited investigation · Final report · Jun 17, 1999 · N480K · Substantial damage
  > The failure of maintenance personnel to properly adjust the drag brace preload during recent landing gear maintenance, which resulted in the overload failure and separation of the hydraulic cylinder attach boss.
- [NTSB DEN99LA100](https://openairdocs.org/ntsb/DEN99LA100.md): Butler SX-300 · Hill Afb, UT · Accident · No injuries · Limited investigation · Final report · Jun 12, 1999 · N120J · Substantial damage
  > A failure of the left main landing gear attachment for undetermined reasons.
- [NTSB DEN99LA094](https://openairdocs.org/ntsb/DEN99LA094.md): Cessna 182B · Salt Lake City, UT · Accident · No injuries · Limited investigation · Final report · Jun 6, 1999 · N2276G · Substantial damage
  > Failure of the nose landing gear scissors bolt for undetermined reasons.
- [NTSB NYC99LA154](https://openairdocs.org/ntsb/NYC99LA154.md): Cessna 172RG · Morristown, NJ · Accident · No injuries · Limited investigation · Final report · May 23, 1999 · N9475B · Substantial damage
  > The right main landing gear collapsed for undetermined reasons.
- [NTSB CHI99LA156](https://openairdocs.org/ntsb/CHI99LA156.md): Beech 99A · Bemidji, MN · Accident · No injuries · Limited investigation · Final report · May 17, 1999 · N133BA · Substantial damage
  > Failure of the left main landing gear actuator for undetermined reasons.
- [NTSB SEA99LA053](https://openairdocs.org/ntsb/SEA99LA053.md): Beech 35-C33 · Hillsboro, OR · Accident · No injuries · Limited investigation · Final report · Apr 18, 1999 · N1310A · Substantial damage
  > A landing gear collapse for undetermined reasons.
- [NTSB ANC99LA042](https://openairdocs.org/ntsb/ANC99LA042.md): Cessna 180 · Iliamna, AK · Accident · No injuries · Limited investigation · Final report · Apr 4, 1999 · N420SB · Substantial damage
  > The improper installation of the main landing gear attaching bolt by maintenance personnel, which resulted in total failure of the bolt and collapse of the landing gear.
- [NTSB NYC99IA079](https://openairdocs.org/ntsb/NYC99IA079.md): Cessna 550 · State College, PA · Incident · No injuries · Incident investigation · Final report · Mar 25, 1999 · N37MH · Minor damage
  > Improper assembly of the left main landing gear (LMLG) actuator by the airplane manufacturer, which resulted in an incorrect 'locked' indication on the LMLG switch, and the subsequent collapse of the LMLG during taxi.
- [NTSB CHI99LA097](https://openairdocs.org/ntsb/CHI99LA097.md): Cessna 182E · East Troy, WI · Accident · No injuries · Limited investigation · Final report · Feb 21, 1999 · N3177Y · Substantial damage
  > the collapse of the right main landing gear from a preexisting fatigue crack.
- [NTSB ATL98LA130](https://openairdocs.org/ntsb/ATL98LA130.md): Cessna 210L · Orlando, FL · Accident · No injuries · Limited investigation · Final report · Sep 26, 1998 · N300EW · Substantial damage
  > A 6-8 inch crack on the right main landing gear strut, which allowed the hydraulic fluid to escape from the system, along with a power pack sequencing valve failure which allowed the main landing gear to fold on landing. A factor in the accident was the…
- [NTSB NYC98LA186](https://openairdocs.org/ntsb/NYC98LA186.md): Cessna 180 · Lakeshore, MD · Accident · No injuries · Limited investigation · Final report · Sep 12, 1998 · N6503A · Substantial damage
  > Failures of the right float's nose wheel do to a preexisting fatigue crack.
- [NTSB CHI98LA295](https://openairdocs.org/ntsb/CHI98LA295.md): North American SNJ-6B · Quincy, IL · Accident · Minor injuries · Limited investigation · Final report · Aug 2, 1998 · N7983C · Substantial damage
  > the right main landing gear collapsed for undetermined reasons.
- [NTSB IAD98LA114](https://openairdocs.org/ntsb/IAD98LA114.md): Let Blanik L-13 · Hammonton, NJ · Accident · No injuries · Limited investigation · Final report · Jul 11, 1998 · N49CC · Substantial damage
  > Improper maintenance, which resulted in an over-pressurized landing gear.
- [NTSB ANC98IA096](https://openairdocs.org/ntsb/ANC98IA096.md): Cessna 185 · Homer, AK · Incident · No injuries · Incident investigation · Final report · Jul 5, 1998 · N3347L · Minor damage
  > The failure of the right main landing gear leg due to corrosion pitting and fatigue.
- [NTSB LAX98LA216](https://openairdocs.org/ntsb/LAX98LA216.md): Cessna 180H · Ocotillo Wells, CA · Accident · No injuries · Limited investigation · Final report · Jun 29, 1998 · N4803E · Substantial damage
  > Failure of the left main landing gear due to a probable hard landing at an undetermined time.
- [NTSB CHI98LA196](https://openairdocs.org/ntsb/CHI98LA196.md): Cessna 172K · Omaha, NE · Accident · No injuries · Limited investigation · Final report · Jun 10, 1998 · N758FY · Substantial damage
  > The aircraft modification not being in compliance with the Supplemental Type Certificate. A factor to the accident was the fracture of the landing gear axle during landing.
- [NTSB CHI98LA174](https://openairdocs.org/ntsb/CHI98LA174.md): Cessna 310L · Wheeling, IL · Accident · No injuries · Limited investigation · Final report · May 25, 1998 · N333WD · Substantial damage
  > the collapse of the left main landing gear for undetermined reasons.
- [NTSB MIA98LA125](https://openairdocs.org/ntsb/MIA98LA125.md): Piper PA-34-200T · Fort Lauderdale, FL · Accident · No injuries · Limited investigation · Final report · Apr 6, 1998 · N8269A · Substantial damage
  > The failure of the O-rings in the landing gear hydraulic cylinder.
- [NTSB LAX98LA036](https://openairdocs.org/ntsb/LAX98LA036.md): Cessna 172RG · San Diego, CA · Accident · No injuries · Limited investigation · Final report · Nov 12, 1997 · N9451D · Substantial damage
  > Overload of the main gear actuator piston and the subsequent collapse of the landing gear.
- [NTSB CHI98LA001](https://openairdocs.org/ntsb/CHI98LA001.md): Cessna T210N · Fargo, ND · Accident · No injuries · Limited investigation · Final report · Oct 1, 1997 · N5168A · Substantial damage
  > the circuit breaker for the hydraulic pump popped during gear extension which resulting in the failure of the landing gear to lock in the extended position.
- [NTSB FTW97LA370](https://openairdocs.org/ntsb/FTW97LA370.md): Cessna 210L · Albuquerque, NM · Accident · No injuries · Limited investigation · Final report · Sep 29, 1997 · N59217 · Substantial damage
  > The fracture of the right main hydraulic landing gear actuator housing assembly due to overload.
- [NTSB FTW97LA342](https://openairdocs.org/ntsb/FTW97LA342.md): Beech V35 · Sulphur Springs, TX · Accident · No injuries · Limited investigation · Final report · Sep 9, 1997 · N9453S · Substantial damage
  > the pilot's delayed extension of the landing gear.
- [NTSB LAX97LA277](https://openairdocs.org/ntsb/LAX97LA277.md): Cessna 310 · Mesa, AZ · Accident · No injuries · Limited investigation · Final report · Aug 9, 1997 · N8139M · Substantial damage
  > inadequate maintenance inspection of the landing gear system, following a prior incident, due to the mechanic's failure to follow the service manual instructions.
- [NTSB CHI97LA186](https://openairdocs.org/ntsb/CHI97LA186.md): Hulliberger Starduster II · Berrien Springs, MI · Accident · Minor injuries · Limited investigation · Final report · Jun 27, 1997 · N939H · Substantial damage
  > the failure of the landing gear axle due to fatigue.
- [NTSB FTW97LA216](https://openairdocs.org/ntsb/FTW97LA216.md): Wsk Pzl Mielec M-18 · Swifton, AR · Accident · Minor injuries · Limited investigation · Final report · Jun 12, 1997 · N6220C · Destroyed
  > Main landing gear collapse resulting from a failure of the torque link assembly attaching bolt. A factor was the lack of required maintenance (lubrication of the bolt) which resulted in the bolt becoming dry and corroded.
- [NTSB NYC97LA112](https://openairdocs.org/ntsb/NYC97LA112.md): Luscombe LL-8-E · Charlottesville, VA · Accident · No injuries · Limited investigation · Final report · Jun 10, 1997 · N1750K · Substantial damage
  > The left main landing gear collapsed due to corrosion.
- [NTSB CHI97LA087](https://openairdocs.org/ntsb/CHI97LA087.md): Cessna T210 · Janesville, WI · Accident · No injuries · Limited investigation · Final report · Mar 15, 1997 · N6677N · Substantial damage
  > the pilot inadvertently retracting the landing gear during the takeoff roll.
- [NTSB FTW97LA107](https://openairdocs.org/ntsb/FTW97LA107.md): Piper PA-32R-300 · Salida, CO · Accident · No injuries · Limited investigation · Final report · Feb 18, 1997 · N4477F · Substantial damage
  > The airplane's performance being exceeded due to the pilot's inadequate preflight planning. Factors were the uphill runway, high density altitude, and the pilot's lack of experience performing takeoffs from a high altitude airport.
- [NTSB NYC97LA047](https://openairdocs.org/ntsb/NYC97LA047.md): Cessna 650 · Wilkes-Barre, PA · Accident · No injuries · Limited investigation · Final report · Jan 24, 1997 · N777LF · Substantial damage
  > The collapse of the left main landing gear as a result of the malfunction of the downlock actuator for undetermined reasons.
- [NTSB FTW97LA041](https://openairdocs.org/ntsb/FTW97LA041.md): Cessna 172RG · Tulsa, OK · Accident · No injuries · Limited investigation · Final report · Nov 1, 1996 · N9520B · Substantial damage
  > The failure of the main landing gear pivot gear assembly.
- [NTSB CHI96LA272](https://openairdocs.org/ntsb/CHI96LA272.md): Maule MT-7-235 · Poseyville, IN · Accident · No injuries · Limited investigation · Final report · Aug 4, 1996 · N3187Z · Substantial damage
  > the pilot's improper flare during the landing. A factor relating to the accident was: the pilot's lack of familiarity with the make and model of airplane.
- [NTSB SEA96LA162](https://openairdocs.org/ntsb/SEA96LA162.md): Conkey/Wapelhorst Lancair 235 · Cottage Grove, OR · Accident · No injuries · Limited investigation · Final report · Jul 20, 1996 · N235WC · Substantial damage
  > release of the main landing gear locking mechanism for undetermined reason(s).
- [NTSB SEA96LA127](https://openairdocs.org/ntsb/SEA96LA127.md): Piper PA-34-200T · Aurora, OR · Accident · No injuries · Limited investigation · Final report · Jun 14, 1996 · N67SA · Substantial damage
  > inadvertent retraction of the landing gear by the pilot during landing.
- [NTSB CHI96LA148](https://openairdocs.org/ntsb/CHI96LA148.md): Fairchild M-62C · Garden City, KS · Accident · No injuries · Limited investigation · Final report · May 2, 1996 · N67481 · Substantial damage
  > failure of the left main landing gear strut due to corrosoion.
- [NTSB ANC96LA062](https://openairdocs.org/ntsb/ANC96LA062.md): Cessna 170B · Togiak, AK · Accident · Minor injuries · Limited investigation · Final report · Apr 30, 1996 · N2760D · Substantial damage
  > fatigue failure of the right main landing gear strut.
- [NTSB BFO96LA033](https://openairdocs.org/ntsb/BFO96LA033.md): Cessna 210 · Baltimore, MD · Accident · No injuries · Limited investigation · Final report · Dec 28, 1995 · N450EM · Substantial damage
  > failure of the pilot to ensure that the landing gear was fully down and locked before landing.
- [NTSB LAX95LA274](https://openairdocs.org/ntsb/LAX95LA274.md): North American AT-6F · Long Beach, CA · Accident · No injuries · Limited investigation · Final report · Jul 28, 1995 · N3173L · Substantial damage
  > the failure of the left main landing gear locking mechanism to fully seat in the 'down' position due to loose attachment bolts.

Next page: https://openairdocs.org/ntsb.md?occurrence=190&page=4

## 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 o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 190)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=190&page=3

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