# 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 4 of 6 · 285 cases

## Cases, newest first

- [NTSB FTW95LA322](https://openairdocs.org/ntsb/FTW95LA322.md): Rockwell S-2R · Edna, TX · Accident · No injuries · Limited investigation · Final report · Jul 28, 1995 · N4182X · Substantial damage
  > The collapsing of the landing gear for undetermined reasons.
- [NTSB CHI95LA224](https://openairdocs.org/ntsb/CHI95LA224.md): Bellanca 17-30 · Springfield, MO · Accident · No injuries · Limited investigation · Final report · Jul 15, 1995 · N6566V · Substantial damage
  > The collapse of the left main landing gear for an undetermined reason.
- [NTSB FTW95LA279](https://openairdocs.org/ntsb/FTW95LA279.md): Bellanca 8GCBC · Wellington, CO · Accident · No injuries · Limited investigation · Final report · Jul 8, 1995 · N57669 · Substantial damage
  > Fatigue failure of the left main landing gear (spring strut), due to the improper maintenance (grinding) by unknown maintenance personnel.
- [NTSB SEA95LA140](https://openairdocs.org/ntsb/SEA95LA140.md): Cessna 182R · Copalis Beach, WA · Accident · No injuries · Limited investigation · Final report · Jul 5, 1995 · N4836E · Substantial damage
  > The pilot's selection of an unsuitable landing area.
- [NTSB LAX95IA246](https://openairdocs.org/ntsb/LAX95IA246.md): Boeing 727-257 · Las Vegas, NV · Incident · No injuries · Incident investigation · Final report · Jul 4, 1995 · N712RC · Minor damage
  > A shear failure of the right main landing gear outer cylinder trunnion due to fatigue and stress corrosion, and the operator's inadequate and improper overhaul procedures.
- [NTSB LAX95LA232](https://openairdocs.org/ntsb/LAX95LA232.md): Cessna 401A · Van Nuys, CA · Accident · No injuries · Limited investigation · Final report · Jul 1, 1995 · N444RJ · Substantial damage
  > the failure of the wing rib web due to undetected cracking in an area of known crack development around the landing gear side brace fitting. The operator's failure to accomplish a Service Letter addressing the problem is a factor in the accident.
- [NTSB SEA95LA133](https://openairdocs.org/ntsb/SEA95LA133.md): Cessna 152 · Saratoga, WY · Accident · No injuries · Limited investigation · Final report · Jun 26, 1995 · N5460B · Substantial damage
  > The pilot's improper handling of the airplane during landing.
- [NTSB FTW95LA138](https://openairdocs.org/ntsb/FTW95LA138.md): Cessna 340 · Santa Fe, NM · Accident · No injuries · Limited investigation · Final report · Mar 14, 1995 · N5432M · Substantial damage
  > Worn landing gear assembly due to inadequate maintenance by maintenance personnel and delayed maintenance by operators.
- [NTSB SEA95LA042](https://openairdocs.org/ntsb/SEA95LA042.md): Cessna 152 · Seattle, WA · Accident · No injuries · Limited investigation · Final report · Jan 22, 1995 · N6605P · Substantial damage
  > The pilot misjudging the flare. A factor to the accident was the tailwind.
- [NTSB BFO95IA023](https://openairdocs.org/ntsb/BFO95IA023.md): Douglas DC-8-54F · New York, NY · Incident · No injuries · Incident investigation · Final report · Dec 25, 1994 · N427FB · Minor damage
  > The failure of the right main landing gear's shock strut piston lug due to stress corrosion.
- [NTSB NYC95IA043](https://openairdocs.org/ntsb/NYC95IA043.md): Boeing 747-131 · Jamaica, NY · Incident · No injuries · Incident investigation · Final report · Dec 18, 1994 · N53116 · Minor damage
  > Improper maintenance overhaul which resulted in a fatigue crack.
- [NTSB LAX95LA073](https://openairdocs.org/ntsb/LAX95LA073.md): Cessna 421C · Chinle, AZ · Accident · No injuries · Limited investigation · Final report · Dec 14, 1994 · N746CA · Substantial damage
  > the overload failure of the nose gear trunion for undetermined reasons.
- [NTSB MIA95LA030](https://openairdocs.org/ntsb/MIA95LA030.md): Cessna 310L · Miami, FL · Accident · Serious injuries · Limited investigation · Final report · Nov 5, 1994 · N216Y · Substantial damage
  > Failure of the landing gear extension and retraction system for an undetermined reason.
- [NTSB SEA95LA003](https://openairdocs.org/ntsb/SEA95LA003.md): Cessna 210 · Bend, OR · Accident · No injuries · Limited investigation · Final report · Oct 7, 1994 · N75DA · Substantial damage
  > The failure of the landing gear downlock mechanism to engage due to undetermined reasons.
- [NTSB LAX94LA362](https://openairdocs.org/ntsb/LAX94LA362.md): Beech B19 · Big Bear City, CA · Accident · No injuries · Limited investigation · Final report · Sep 11, 1994 · N19NH · Substantial damage
  > the failure and separation of the right main landing gear wheel assembly due to a preexisting and undetected crack.
- [NTSB ANC94LA128](https://openairdocs.org/ntsb/ANC94LA128.md): Maule M5 · Port Alsworth, AK · Accident · No injuries · Limited investigation · Final report · Sep 3, 1994 · N51637 · Substantial damage
  > The pilot's selection of unsuitable terrain.
- [NTSB ANC94LA125](https://openairdocs.org/ntsb/ANC94LA125.md): Cessna 170B · Fort Yukon, AK · Accident · No injuries · Limited investigation · Final report · Aug 31, 1994 · N4457B · Substantial damage
  > The fatigue failure of the right main landing gear spring.
- [NTSB SEA94LA218](https://openairdocs.org/ntsb/SEA94LA218.md): Beech 99 · Helena, MT · Accident · No injuries · Limited investigation · Final report · Aug 20, 1994 · N14MV · Substantial damage
  > Landing gear locking mechanism overload and improper rigging.
- [NTSB SEA94LA211](https://openairdocs.org/ntsb/SEA94LA211.md): Cessna 140 · Dayton, WY · Accident · Minor injuries · Limited investigation · Final report · Aug 14, 1994 · N3736V · Substantial damage
  > The pilot's failure to maintain directional control.
- [NTSB ANC94LA114](https://openairdocs.org/ntsb/ANC94LA114.md): Piper PA-22-150 · Deadhorse, AK · Accident · No injuries · Limited investigation · Final report · Aug 8, 1994 · N4450A · Substantial damage
  > The separation of the landing gear tube at the spindle due to corrosion. An inadequate annual inspection was a factor in the accident.
- [NTSB ATL94LA147](https://openairdocs.org/ntsb/ATL94LA147.md): Boeing A75N1 · Chamblee, GA · Accident · No injuries · Limited investigation · Final report · Jul 30, 1994 · N57TH · Substantial damage
  > The fatigue failure of the left main landing gear shock absorbing strut that resulted in a loss of control.
- [NTSB ATL94LA149](https://openairdocs.org/ntsb/ATL94LA149.md): Miller, John Skybolt · Muscle Shoals, AL · Accident · No injuries · Limited investigation · Final report · Jul 28, 1994 · N919JM · Substantial damage
  > The fatigue failure of the main landing gear strut that resulted in a loss of control.
- [NTSB ANC94LA044](https://openairdocs.org/ntsb/ANC94LA044.md): Piper J3 · Denali Nat'L Pk, AK · Accident · No injuries · Limited investigation · Final report · Apr 10, 1994 · N37932 · Substantial damage
  > The failure of the landing gear bolt attachment fitting due to fatigue.
- [NTSB MIA94LA111](https://openairdocs.org/ntsb/MIA94LA111.md): Mooney M20-J · Daytona Beach, FL · Accident · No injuries · Limited investigation · Final report · Apr 5, 1994 · N187ER · Substantial damage
  > Collapse of the left main landing gear for unknown reasons.
- [NTSB LAX94LA175](https://openairdocs.org/ntsb/LAX94LA175.md): Mooney M-20C · Hyampom, CA · Accident · No injuries · Limited investigation · Final report · Mar 29, 1994 · N4045N · Substantial damage
  > The pilot's failure to follow proper procedures by assuring that the landing gear locking mechanism was properly engaged.
- [NTSB CHI94LA087](https://openairdocs.org/ntsb/CHI94LA087.md): Piper PA-44-180 · Grand Forks, ND · Accident · No injuries · Limited investigation · Final report · Feb 13, 1994 · N190ND · Substantial damage
  > the improper maintenance installation (cotter pin) by other maintenance personnel. Factors were main landing gear scissors not safetied properly and extension of landing gear not possible by pilot-in-command (CFI).
- [NTSB NYC94LA047](https://openairdocs.org/ntsb/NYC94LA047.md): Aeronca 65-TL · Findley Lake, NY · Accident · No injuries · Limited investigation · Final report · Jan 10, 1994 · N29404 · Substantial damage
  > the failure of a weld at the base of the landing gear which resulted in the failure of the left snow-ski assembly.
- [NTSB FTW94IA032](https://openairdocs.org/ntsb/FTW94IA032.md): Fairchild SA227-AC · Sugar Land, TX · Incident · No injuries · Incident investigation · Final report · Nov 11, 1993 · N688NE · Minor damage
  > The partial failure of the hydraulic pump (power pack).
- [NTSB NYC94LA018](https://openairdocs.org/ntsb/NYC94LA018.md): Cessna 170 · Williamstown, NJ · Accident · No injuries · Limited investigation · Final report · Oct 23, 1993 · N3975V · Substantial damage
  > Fatigue failure of the gear axle which resulted in the collapse of the left main gear.
- [NTSB SEA93LA212](https://openairdocs.org/ntsb/SEA93LA212.md): Cessna 182RG · Vancouver, WA · Accident · No injuries · Limited investigation · Final report · Sep 23, 1993 · N736ZV · Substantial damage
  > The pilot's inadvertent landing gear retraction.
- [NTSB FTW93LA145](https://openairdocs.org/ntsb/FTW93LA145.md): Cessna 310H · Brookshire, TX · Accident · No injuries · Limited investigation · Final report · Apr 30, 1993 · N48AA · Substantial damage
  > The pilot's failure to attain proper runway alignment. Factors were the dark night and weather conditions.
- [NTSB MIA93LA034](https://openairdocs.org/ntsb/MIA93LA034.md): Beech A36 · Miami, FL · Accident · No injuries · Limited investigation · Final report · Dec 18, 1992 · N9066S · Substantial damage
  > The pilot in command's inadvertent activation of the landing gear switch while attempting to raise wing flaps during landing rollout, resulting in collapse of the landing gear. Contributing to the accident was the pilot in command's diverted attention to the…
- [NTSB CHI92DER03](https://openairdocs.org/ntsb/CHI92DER03.md): Schneider/Brashear Sorrell SNS-7 · Alexandria, MN · Accident · No injuries · Final report · Aug 9, 1992 · N226HB · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll.
- [NTSB MIA92LA159](https://openairdocs.org/ntsb/MIA92LA159.md): Grumman G-164A · Toney, AL · Accident · No injuries · Limited investigation · Final report · Aug 4, 1992 · N5272 · Substantial damage
  > The left main landing gear attachment bolt failed for undetermined reasons resulting in the collapse of both main landing gear during the take off roll.
- [NTSB FTW92LA159](https://openairdocs.org/ntsb/FTW92LA159.md): Bell 47G-2 · Danbury, TX · Accident · No injuries · Limited investigation · Final report · Jun 14, 1992 · N6746D · Substantial damage
  > The failure of the landing gear skid due to internal corrosion. A factor was the soft ground.
- [NTSB FTW92LA121](https://openairdocs.org/ntsb/FTW92LA121.md): Piper PA-31-350 · Houston, TX · Accident · No injuries · Limited investigation · Final report · Apr 28, 1992 · N140RD · Substantial damage
  > The failure of the hydraulic system seal and the subsequent fluid leak.
- [NTSB CHI92DEP02](https://openairdocs.org/ntsb/CHI92DEP02.md): Rutan Varieze · Kenosha, WI · Accident · No injuries · Final report · Mar 23, 1992 · N39L · Substantial damage
  > Collapse of the nose landing gear.
- [NTSB CHI92LA072](https://openairdocs.org/ntsb/CHI92LA072.md): Beech A36 · Griffith, IN · Accident · No injuries · Limited investigation · Final report · Jan 11, 1992 · N15PM · Substantial damage
  > Premature gear retraction during takeoff roll by the pilot.
- [NTSB NYC92LA015](https://openairdocs.org/ntsb/NYC92LA015.md): Cessna 150L · Sanford, ME · Accident · No injuries · Limited investigation · Final report · Oct 18, 1991 · N6544G · Substantial damage
  > The failure of the nose wheel through bolt as a result of fatigue cracking.
- [NTSB CHI91LA261](https://openairdocs.org/ntsb/CHI91LA261.md): Piper PA-32-R300 · Lake In Hills, IL · Accident · No injuries · Limited investigation · Final report · Aug 13, 1991 · N40446 · Substantial damage
  > The pilot's failure to perform an adequate preflight by assuring the gear lever was in the down and locked position.
- [NTSB CHI91LA262](https://openairdocs.org/ntsb/CHI91LA262.md): Cessna 310 · Plattsmouth, NE · Accident · No injuries · Limited investigation · Final report · Aug 10, 1991 · N4827B · Substantial damage
  > Improper maintenance by the owner/pilot. A factor related to the accident was the built-up of corrosion on he landing gear retraction system.
- [NTSB ANC91LA118](https://openairdocs.org/ntsb/ANC91LA118.md): Piper PA-31-350 · Emmonak, AK · Accident · No injuries · Limited investigation · Final report · Aug 8, 1991 · N27472 · Substantial damage
  > That the pilot inadvertently retracted the landing gear during the takeoff roll. Contributing to this accident was that the checklist was not followed.
- [NTSB CHI91LA201](https://openairdocs.org/ntsb/CHI91LA201.md): Piper PA-28-201R · Wheeling, IL · Accident · No injuries · Limited investigation · Final report · Jun 24, 1991 · N2126K · Substantial damage
  > The pilot in command's inadequate pre-flight inspection. Factors contributing to this accident were the landing gear lever not being engaged, the use of an inadequate procedure by the pilot-in-command, and the inadvertent gear retraction during takeoff roll.
- [NTSB DEN91LA054](https://openairdocs.org/ntsb/DEN91LA054.md): Beech H35 · Greeley, CO · Accident · No injuries · Limited investigation · Final report · Mar 24, 1991 · N5463D · Substantial damage
  > The pilot's inadvertent activation of the landing gear switch causing the landing gear to collapse while the aircraft was still on the landing roll.
- [NTSB LAX91LA142](https://openairdocs.org/ntsb/LAX91LA142.md): Cessna 421 · El Monte, CA · Accident · No injuries · Limited investigation · Final report · Mar 23, 1991 · N4071L · Substantial damage
  > The pilot retracting the landing gear during the landing roll.
- [NTSB CHI91LA105](https://openairdocs.org/ntsb/CHI91LA105.md): Cessna 401 · St. Louis, MO · Accident · No injuries · Limited investigation · Final report · Mar 6, 1991 · N401RW · Substantial damage
  > The landing gear locking mechanism (bell crank) had fractured.
- [NTSB SEA91TA003](https://openairdocs.org/ntsb/SEA91TA003.md): Piper PA-34 · Pinedale, WY · Accident · No injuries · Final report · Jan 25, 1991 · N8372Z · Substantial damage
  > The pilot's failure to attain proper runway alignment during landing. A contributing factor was a snow covered runway.
- [NTSB ATL90LA166](https://openairdocs.org/ntsb/ATL90LA166.md): Piper PA-28 · Indian Trail, NC · Accident · No injuries · Limited investigation · Final report · Aug 27, 1990 · N3255R · Substantial damage
  > The failure of the pilot to have the landing gear inspected after experiencing unsafe gear indications.
- [NTSB ANC90LA128](https://openairdocs.org/ntsb/ANC90LA128.md): Cessna 337 · Kustatan River, AK · Accident · No injuries · Limited investigation · Final report · Jul 31, 1990 · N2271X · Substantial damage
  > Pilot-in-command's failure to assure that the rear engine developed full takeoff power and to attain takeoff airspeed. Contributing factors were the terrain conditions.
- [NTSB NYC90LA123](https://openairdocs.org/ntsb/NYC90LA123.md): Cessna 401 · Plymouth, MA · Accident · No injuries · Limited investigation · Final report · May 31, 1990 · N401FC · Substantial damage
  > Improper maintenance and inspection by maintenance personnel of the left gear torque link attachment.

Next page: https://openairdocs.org/ntsb.md?occurrence=190&page=5

## 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=4

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