# NTSB investigations: Main 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 1 of 9 · 406 cases

## Latest cases

- [NTSB SEA08LA029](https://openairdocs.org/ntsb/SEA08LA029.md): Piper PA-44-180 · Byron, CA · Accident · No injuries · Limited investigation · Final report · Nov 14, 2007 · N274ER · Substantial damage
  > The failure of the right main landing gear aft trunnion attach fitting due to overload during the landing roll.
- [NTSB DEN07LA156](https://openairdocs.org/ntsb/DEN07LA156.md): Cessna 402B · Hobbs, NM · Accident · No injuries · Limited investigation · Final report · Sep 10, 2007 · N402BF · Substantial damage
  > The failure of the left main landing gear down lock due to overload causing the main landing gear to collapse.
- [NTSB CHI07CA285](https://openairdocs.org/ntsb/CHI07CA285.md): Navion Navion H · Atlantic, IA · Accident · No injuries · Data collection · Final report · Aug 30, 2007 · N2540T · Substantial damage
  > The pilot's improper flare and touchdown during landing resulting in overload failure of the left main landing gear. A contributing factor was the pilot's distraction due to the unlatched cabin door.
- [NTSB DFW07CA128](https://openairdocs.org/ntsb/DFW07CA128.md): Doggett Jack Samson · Conroe, TX · Accident · No injuries · Data collection · Final report · Jun 1, 2007 · N985JD · Substantial damage
  > The failure of the main landing gear for undetermined reasons.
- [NTSB CHI07LA159](https://openairdocs.org/ntsb/CHI07LA159.md): Cessna 340A · Middleton, WI · Accident · No injuries · Limited investigation · Final report · May 30, 2007 · N17MH · Substantial damage
  > Failure of the right main landing gear extension and retraction linkage, which allowed the gear assembly to collapse during landing rollout. An additional cause was the improper adjustment procedure(s) by undetermined mechanic(s). The runway lights struck…
- [NTSB CHI07CA028](https://openairdocs.org/ntsb/CHI07CA028.md): Cessna 421C · Moline, IL · Accident · No injuries · Data collection · Final report · Nov 26, 2006 · N471BW · Substantial damage
  > The incorrect installation of the torque link scissor assembly by maintenance personnel, which resulted in the collapse of the right main landing gear during landing.
- [NTSB ATL07LA004](https://openairdocs.org/ntsb/ATL07LA004.md): Piper PA-28R-180 · Alabaster, AL · Accident · No injuries · Limited investigation · Final report · Oct 7, 2006 · N70SR · Substantial damage
  > The jammed landing gear hydraulic motor shuttle valve.
- [NTSB CHI06CA279](https://openairdocs.org/ntsb/CHI06CA279.md): Meyers MAC-145 · Manistique, MI · Accident · No injuries · Data collection · Final report · Aug 6, 2006 · N34360 · Substantial damage
  > The pilot not verifying the landing gear selector position prior to starting the taxi.
- [NTSB MIA06LA130](https://openairdocs.org/ntsb/MIA06LA130.md): Cessna 550 · Marathon, FL · Accident · No injuries · Limited investigation · Final report · Jul 22, 2006 · N466SS · Substantial damage
  > The separation for undetermined reasons of the stud (P/N 6541204-5) which secures the main landing gear actuator assembly side brace to the main landing gear outer cylinder, allowing partial collapse of the right main landing gear while taxiing after landing.
- [NTSB LAX06LA225](https://openairdocs.org/ntsb/LAX06LA225.md): Cessna 210K · Novato, CA · Accident · No injuries · Limited investigation · Final report · Jul 5, 2006 · N12PF · Substantial damage
  > The failure of the left main landing gear to extend for undetermined reasons.
- [NTSB SEA06CA087](https://openairdocs.org/ntsb/SEA06CA087.md): Cessna 310R · Billings, MT · Accident · No injuries · Data collection · Final report · Apr 19, 2006 · N954EA · Substantial damage
  > Collapse of the right main landing gear during the landing roll for an undetermined reason.
- [NTSB CHI06CA068](https://openairdocs.org/ntsb/CHI06CA068.md): Cessna 310Q · Griffith, IN · Accident · No injuries · Data collection · Final report · Jan 15, 2006 · N141DE · Substantial damage
  > The overload failure of the right main landing gear locking mechanism due to undetermined reasons.
- [NTSB CHI05CA244](https://openairdocs.org/ntsb/CHI05CA244.md): Cessna 414 · Drummond Island, MI · Accident · No injuries · Data collection · Final report · Aug 25, 2005 · N77DN · Substantial damage
  > The right main gear collapsed due to undetermined reasons. A factor associated with the accident was the fence that the airplane contacted.
- [NTSB CHI05LA136](https://openairdocs.org/ntsb/CHI05LA136.md): Cessna 182TR · Wheeling, IL · Accident · No injuries · Limited investigation · Final report · Jun 7, 2005 · N4978T · Substantial damage
  > The pilot failed to verify that the landing gear were fully extended and failed to perform the emergency landing gear extention procedures. Factors to the accident included the low hydraulic fluid level, and the weak battery that resulted in a partial…
- [NTSB MIA05LA108](https://openairdocs.org/ntsb/MIA05LA108.md): Beech 58 · Gulfport, MS · Accident · No injuries · Limited investigation · Final report · May 24, 2005 · N6654Y · Substantial damage
  > The inadequate maintenance inspection by maintenance personnel which resulted in damaged landing gear pulleys, resulting in the failure of the landing gear downlock to engage, and collapse of the main landing gear during landing.
- [NTSB MIA05LA062](https://openairdocs.org/ntsb/MIA05LA062.md): Howard DGA-15 · Daytona Beach, FL · Accident · No injuries · Limited investigation · Final report · Feb 22, 2005 · N68431 · Substantial damage
  > Maintenance personnel failure to detect corrosion in the landing gear strut, resulting in the gear collapsing during landing and damage to the airplane.
- [NTSB MIA05LA018](https://openairdocs.org/ntsb/MIA05LA018.md): Cessna 340A-RAM VI · Pensacola, FL · Accident · No injuries · Limited investigation · Final report · Oct 31, 2004 · N340BK · Substantial damage
  > The left landing gear collapsing due to the actuator separating for undetermined reasons.
- [NTSB CHI04LA199](https://openairdocs.org/ntsb/CHI04LA199.md): Rockwell 114 · Grand Rapids, MI · Accident · No injuries · Limited investigation · Final report · Jul 29, 2004 · N114TS · Substantial damage
  > The right main landing gear failed as a result of the fatigue fracture due to the casting defect (inclusion) during the manufacture process.
- [NTSB CHI04IA178](https://openairdocs.org/ntsb/CHI04IA178.md): Beech 1900D · Milwaukee, WI · Incident · No injuries · Incident investigation · Final report · Jul 6, 2004 · N87SK · Minor damage
  > The fatigue fracture of the left main landing gear during landing roll.
- [NTSB MIA04LA038](https://openairdocs.org/ntsb/MIA04LA038.md): Cessna 172RG · Key West, FL · Accident · No injuries · Limited investigation · Final report · Dec 25, 2003 · N4721R · Substantial damage
  > Pilot's improper emergency landing gear extension procedure which resulted in the right main landing gear not locking in the down position subsequent right main landing gear collapsing on landing.
- [NTSB ANC03LA126](https://openairdocs.org/ntsb/ANC03LA126.md): Cessna 170A · Skwentna, AK · Accident · No injuries · Limited investigation · Final report · Sep 25, 2003 · N9006A · Substantial damage
  > An overload failure of the axle retaining nut/bolt assembly, which resulted in the separation of the axle/wheel assembly, and subsequent collapse of the right main landing gear strut during the landing roll.
- [NTSB LAX03LA304](https://openairdocs.org/ntsb/LAX03LA304.md): Piper PA-28R-180 · Prescott, AZ · Accident · No injuries · Limited investigation · Final report · Aug 19, 2003 · N3817T · Substantial damage
  > The collapse of the right main gear during the landing roll for undetermined reasons.
- [NTSB SEA03LA133](https://openairdocs.org/ntsb/SEA03LA133.md): Cessna 402 B · Lakeview, OR · Accident · No injuries · Limited investigation · Final report · Jul 8, 2003 · N98635 · Substantial damage
  > Failure of the landing gear shaft roll pin resulting in a main gear collapse during the taxi phase of operation.
- [NTSB ANC03LA053](https://openairdocs.org/ntsb/ANC03LA053.md): Cessna 320 · McCarthy, AK · Accident · No injuries · Limited investigation · Final report · May 30, 2003 · N5712X · Substantial damage
  > The collapse of the left main landing gear during the landing roll for undetermined reasons.
- [NTSB LAX03LA033](https://openairdocs.org/ntsb/LAX03LA033.md): Cessna 172M · Rosamond, CA · Accident · No injuries · Limited investigation · Final report · Nov 16, 2002 · N548RM · Substantial damage
  > The fatigue failure of left main landing gear strut at the upper fuselage aft attachment hole, which resulted in the collapse of the left main landing gear during the landing roll.
- [NTSB SEA03LA001](https://openairdocs.org/ntsb/SEA03LA001.md): Curtiss-Wright Travel Air 4000 · Tillamook, OR · Accident · No injuries · Limited investigation · Final report · Oct 5, 2002 · N4949 · Substantial damage
  > The fracture of the weld joining the left main wheel strut to the left/right main wheel axel resulting in separation of the strut from the axle during an unknown phase of operation which ultimately lead to the left gear collapse and subsequent nose-over on…
- [NTSB CHI02LA210](https://openairdocs.org/ntsb/CHI02LA210.md): Cessna 402B · St. Louis, MO · Accident · No injuries · Limited investigation · Final report · Jul 24, 2002 · N22PB · Substantial damage
  > The landing gear collapsed for undetermined reasons.
- [NTSB FTW02LA184](https://openairdocs.org/ntsb/FTW02LA184.md): Cessna P210N · Shreveport, LA · Accident · No injuries · Limited investigation · Final report · Jun 16, 2002 · N4720P · Substantial damage
  > the collapse of the right main landing gear for undetermined reasons.
- [NTSB SEA02LA084](https://openairdocs.org/ntsb/SEA02LA084.md): Paxhia Murphy SR3500 · Seattle, WA · Accident · No injuries · Limited investigation · Final report · May 22, 2002 · N526AP · Substantial damage
  > The failure of the left main gear leg AN-5 attach fitting bolt.
- [NTSB ANC02LA033](https://openairdocs.org/ntsb/ANC02LA033.md): Bellanca 7GCBC · Yakutat, AK · Accident · No injuries · Limited investigation · Final report · May 13, 2002 · N3JK · Substantial damage
  > The collapse of the left main landing gear during the landing roll due to a fractured main gear leg strut.
- [NTSB SEA02LA077](https://openairdocs.org/ntsb/SEA02LA077.md): Cessna 177B · New Plymouth, ID · Accident · No injuries · Limited investigation · Final report · Apr 28, 2002 · N34858 · Substantial damage
  > The pilot's use of unsuitable terrain (landing surface) at his privately owned landing site. A contribtuing factor was the soft area which the aircraft's right main wheel encountered.
- [NTSB LAX02LA142](https://openairdocs.org/ntsb/LAX02LA142.md): Cessna 340A · Lancaster, CA · Accident · No injuries · Limited investigation · Final report · Apr 23, 2002 · N6304X · Substantial damage
  > The collapse of the right main landing gear as a result of a malfunctioning microswitch.
- [NTSB SEA02LA057](https://openairdocs.org/ntsb/SEA02LA057.md): Cessna 340 · Idaho Falls, ID · Accident · No injuries · Limited investigation · Final report · Mar 23, 2002 · C-FFZJ · Substantial damage
  > The overload of the right main landing gear bellcrank, adjustable end fitting and clevis ears resulting in fractures and the subsequent gear collapse.
- [NTSB DEN01LA118](https://openairdocs.org/ntsb/DEN01LA118.md): Beech BE76 · Hudson, CO · Accident · No injuries · Limited investigation · Final report · Jun 30, 2001 · N877SP · Substantial damage
  > main landing gear collapse on touchdown for reasons undetermined.
- [NTSB MIA01LA174](https://openairdocs.org/ntsb/MIA01LA174.md): Socata TB-20 · Naples, FL · Accident · No injuries · Limited investigation · Final report · Jun 23, 2001 · N1887S · Substantial damage
  > The collapse of the left main landing gear for undetermined reasons resulting in the loss of directional control and subsequent on-ground collision with a ravine.
- [NTSB LAX01FA201](https://openairdocs.org/ntsb/LAX01FA201.md): Piper PA-31-350 · North Las Vegas, NV · Accident · No injuries · Field investigation · Final report · Jun 5, 2001 · N209TA · Substantial damage
  > fatigue failure of the right main landing gear retraction arm.
- [NTSB MIA01LA137](https://openairdocs.org/ntsb/MIA01LA137.md): Piper PA-34-200 · Venice, FL · Accident · No injuries · Limited investigation · Final report · Apr 27, 2001 · N876BB · Substantial damage
  > The failure of the pilot to attain the proper touchdown point resulting in a long landing and subsequent collapse of the right main landing gear. Also, failure of the pilot to perform a go-around following a long landing.
- [NTSB MIA01IA091](https://openairdocs.org/ntsb/MIA01IA091.md): Cessna 402C · Fort Lauderdale, FL · Incident · No injuries · Incident investigation · Final report · Mar 3, 2001 · N108GP · Minor damage
  > Incomplete compliance with a non-mandatory Cessna Service Information Letter by an unknown person resulting in pulling through of the attach bolt of the upper and lower link assemblies and subsequent rotation of the right wheel assembly. Additionally,…
- [NTSB ATL01LA030](https://openairdocs.org/ntsb/ATL01LA030.md): Learjet 25B · Ft. Pierce, FL · Accident · No injuries · Limited investigation · Final report · Feb 4, 2001 · N48WA · Substantial damage
  > The mechanic's failure to properly install and secure the left main landing gear aft trunnion pin in accordance with procedures.
- [NTSB FTW01LA044](https://openairdocs.org/ntsb/FTW01LA044.md): Cessna TR182 · Little Rock, AR · Accident · No injuries · Limited investigation · Final report · Dec 22, 2000 · N2225T · Substantial damage
  > the failure of the right main landing gear actuator.
- [NTSB LAX00LA330](https://openairdocs.org/ntsb/LAX00LA330.md): Piper PA-28-161 · Palo Alto, CA · Accident · No injuries · Limited investigation · Final report · Sep 4, 2000 · N6462C · Substantial damage
  > The failure of maintenance personnel to detect and correct loose attachment fasteners and fretting at the landing gear attachment during maintenance inspections.
- [NTSB NYC00LA190](https://openairdocs.org/ntsb/NYC00LA190.md): Spartan 7W · Jefferson, OH · Accident · No injuries · Limited investigation · Final report · Jul 6, 2000 · N17613 · Substantial damage
  > The overload failure of the left main gear strut housing.
- [NTSB LAX00LA224](https://openairdocs.org/ntsb/LAX00LA224.md): Piper PA-20 · Quincy, CA · Accident · No injuries · Limited investigation · Final report · Jun 13, 2000 · N7451K · Substantial damage
  > The fracture and failure of the main landing gear strut to shock absorber attachment fitting.
- [NTSB LAX00LA188](https://openairdocs.org/ntsb/LAX00LA188.md): Cessna 310Q · Mesa, AZ · Accident · No injuries · Limited investigation · Final report · May 9, 2000 · N7648Q · Substantial damage
  > the overload fracture and separation of the right main landing gear attachment.
- [NTSB MIA00IA104](https://openairdocs.org/ntsb/MIA00IA104.md): Beech 58 · Memphis, TN · Incident · No injuries · Incident investigation · Final report · Mar 14, 2000 · N225TA · Minor damage
  > failure of the right main landing gear's dynamic brake relay, that resulted in the motor driving the gearbox past prescribed limits, resulting in a bent connecting rod, and failure of the gear to extend.
- [NTSB LAX00LA004](https://openairdocs.org/ntsb/LAX00LA004.md): Cessna 421B · Montague, CA · Accident · No injuries · Limited investigation · Final report · Oct 5, 1999 · N69GP · Substantial damage
  > The collapse of the left main landing gear during the landing rollout for undetermined reasons, which resulted in the pilot's loss of directional control.
- [NTSB FTW00LA002](https://openairdocs.org/ntsb/FTW00LA002.md): Cessna 210L · Fayetteville, AR · Accident · No injuries · Limited investigation · Final report · Oct 1, 1999 · N2157S · Substantial damage
  > The cause of the right main gear collapse was undetermined. A factor was the failure of the gear 'down & locked' switch resulting in a false 'down & locked' indication in the cockpit.
- [NTSB FTW99LA258](https://openairdocs.org/ntsb/FTW99LA258.md): Cessna 172RG · Fort Smith, AR · Accident · No injuries · Limited investigation · Final report · Sep 12, 1999 · N9724B · Substantial damage
  > The failure of the electric pump motor/hydraulic power pack resulting in the collapse of the right main landing gear upon landing.
- [NTSB MIA99LA236](https://openairdocs.org/ntsb/MIA99LA236.md): Michael L. Luckey Sportsman 2 + 2 · Grand Junction, TN · Accident · Minor injuries · Limited investigation · Final report · Aug 22, 1999 · N116ML · Substantial damage
  > The improper spoiler extension by the passenger following the bounced landing, which resulted in the hard landing and collapse of the left main landing gear.
- [NTSB CHI99LA291](https://openairdocs.org/ntsb/CHI99LA291.md): Cessna 182 · Tecumseh, MI · Accident · No injuries · Limited investigation · Final report · Aug 11, 1999 · N6284A · Substantial damage
  > fracture of the right main landing gear strut.

Next page: https://openairdocs.org/ntsb.md?occurrence=191&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 o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 191)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=191

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