# NTSB investigations, 2020: Landing gear collapse

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.

## Latest cases

- [NTSB ERA21LA238](https://openairdocs.org/ntsb/ERA21LA238.md): Piper PA46R-350T · York, PA · Accident · No injuries · Class 3 · Limited · Final report · Dec 30, 2020 · N463ST · Substantial damage
  > An improper weld repair of the engine mount, which resulted in a fatigue failure of the mount and subsequent nose landing gear collapse. Contributing to the accident was maintenance personnel’s failure to accomplish the manufacturer’s service bulletin…
- [NTSB CEN21LA108](https://openairdocs.org/ntsb/CEN21LA108.md): Cirrus Design SR20 · Fort Worth, TX · Accident · No injuries · Class 3 · Limited · Final report · Nov 6, 2020 · N720TX · Substantial damage
  > A failure of the nose wheel landing strut for reasons that could not be determined based on available information.
- [NTSB DCA21WA019](https://openairdocs.org/ntsb/DCA21WA019.md): Fairchild 227 · Mendoza, Argentina · Incident · No injuries · Class 5 · Foreign · Nov 5, 2020 · LV-VDJ · Substantial damage
- [NTSB WPR21LA037](https://openairdocs.org/ntsb/WPR21LA037.md): Remos Aircraft Gmbh Flugzeugbau GX · Glendale, AZ · Accident · No injuries · Class 3 · Limited · Final report · Nov 4, 2020 · N87GX · Substantial damage
  > The material overstress failure of the airframe’s aluminum carry-through of the main landing gear.
- [NTSB CEN21LA233](https://openairdocs.org/ntsb/CEN21LA233.md): Cessna 140 · Edinburg, TX · Accident · No injuries · Class 3 · Limited · Final report · Oct 30, 2020 · N76933 · Substantial damage
  > The collapse of the airplane’s left main landing gear for a reason that could not be determined based upon the available evidence.
- [NTSB WPR21WA026](https://openairdocs.org/ntsb/WPR21WA026.md): Piper PA46 · Limpopo Province, South Africa · Accident · Class 4 · Foreign · Oct 22, 2020 · N4322Y · Substantial damage
- [NTSB ERA21LA021](https://openairdocs.org/ntsb/ERA21LA021.md): Beech 99 · Waterville, ME · Accident · No injuries · Class 3 · Limited · Final report · Oct 14, 2020 · N499CZ · Substantial damage
  > A failure of the right main landing gear drag leg support fitting and angle bracket as a result of multiple areas of fatigue cracking.
- [NTSB CEN21LA009](https://openairdocs.org/ntsb/CEN21LA009.md): Mooney M20F · Denver, CO · Accident · No injuries · Class 4 · Limited · Final report · Oct 2, 2020 · N7798M · Substantial damage
  > Failure of the landing gear motor that prevented the gear from extending fully to the down and locked position, which resulted in a gear collapse on landing and a subsequent loss of directional control.
- [NTSB ERA20LA342](https://openairdocs.org/ntsb/ERA20LA342.md): Bellanca 7GCB · DeFuniak Springs, FL · Accident · No injuries · Class 4 · Limited · Final report · Sep 30, 2020 · N8950R · Substantial damage
  > The failure of the left landing gear airframe cross tube during landing, due to corrosion hidden under riveted fairing.
- [NTSB DCA20WA140](https://openairdocs.org/ntsb/DCA20WA140.md): Boeing 767 · Bucure?ti, Romania · Accident · No injuries · Class 5 · Foreign · Aug 28, 2020 · N423AX · Substantial damage
- [NTSB WPR20LA290](https://openairdocs.org/ntsb/WPR20LA290.md): Diamond DA 40 · Benson, AZ · Accident · No injuries · Class 3 · Limited · Final report · Aug 20, 2020 · N386MA · Substantial damage
  > The failure of the nose landing due to fatigue cracking.
- [NTSB WPR20LA306](https://openairdocs.org/ntsb/WPR20LA306.md): Piper PA-28-181 · Upland, CA · Accident · No injuries · Class 3 · Limited · Final report · Aug 19, 2020 · N79MS · Substantial damage
  > The failure of the right landing gear due to fatigue cracking.
- [NTSB WPR20CA254](https://openairdocs.org/ntsb/WPR20CA254.md): Cessna 182 · Clearwater, OR · Accident · No injuries · Class 4 · Data collection · Final report · Jul 22, 2020 · N9747H · Substantial damage
  > The pilot's improper pitch attitude during the soft-field landing roll, which resulted in the tail striking the runway.
- [NTSB WPR20CA213](https://openairdocs.org/ntsb/WPR20CA213.md): Beech 33 · Redmond, OR · Accident · No injuries · Class 4 · Data collection · Final report · Jul 6, 2020 · N727P · Substantial damage
  > The left seated flight instructor’s improper manipulation of the landing gear position selection lever to the up position while still on the landing roll, which ultimately resulted in a landing gear collapse during a subsequent landing.
- [NTSB WPR20LA187](https://openairdocs.org/ntsb/WPR20LA187.md): Cessna 310 · Coeur D Alene, ID · Accident · No injuries · Class 3 · Limited · Final report · Jun 18, 2020 · N6602B · Substantial damage
  > Improper maintenance of the landing gear system which resulted in a partial gear collapse during landing.
- [NTSB WPR20CA183](https://openairdocs.org/ntsb/WPR20CA183.md): Cessna 310 · Butte, MT · Accident · No injuries · Class 4 · Data collection · Final report · Jun 15, 2020 · N87395 · Substantial damage
  > The pilot's failure to maintain clearance from a fence post during final approach which resulted in a damage to the left main landing gear, and its subsequent collapse during landing.
- [NTSB WPR20LA252](https://openairdocs.org/ntsb/WPR20LA252.md): Piper PA 30 · Salem, OR · Accident · No injuries · Class 3 · Limited · Final report · Jun 5, 2020 · N8244Y · Substantial damage
  > A fatigue failure of the right main landing gear trunnion.
- [NTSB CEN20CA212](https://openairdocs.org/ntsb/CEN20CA212.md): Piper PA28R · Corpus Cristi, TX · Accident · No injuries · Class 4 · Data collection · Final report · Jun 4, 2020 · N533K · Substantial damage
  > The pilot's failure to utilze the emergency landing gear extension procedure after a short-circuit within the normal landing gear system, which resulted in a landing gear collapse during landing.
- [NTSB WPR20LA165](https://openairdocs.org/ntsb/WPR20LA165.md): Omf 100 · Glendale, AZ · Accident · No injuries · Class 3 · Limited · Final report · Jun 3, 2020 · N225CK · Substantial damage
  > Maintenance personnel’s failure to comply with the procedures of an airworthiness directive, which resulted in a fatigue failure of the longitudinal frame tube during landing and collapse of the right main landing gear.
- [NTSB CEN20WA243](https://openairdocs.org/ntsb/CEN20WA243.md): Cessna P210 · Wevelgem, Belgium · Incident · No injuries · Foreign investigation · Jun 3, 2020 · N6951Y
  > The government of Belgium has notified the NTSB of an accident involving a Cessna P210 airplane that occurred on June 03, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of Belgium's investigation under the provisions of…
- [NTSB ANC20LA053](https://openairdocs.org/ntsb/ANC20LA053.md): Zenith Stol CH701 · Ambler, AK · Accident · No injuries · Class 3 · Limited · Final report · May 31, 2020 · N324WS · Substantial damage
  > The pilot’s improper decision to take off from unsuitable terrain, which resulted in impact with uneven terrain, the subsequent failure of the nosewheel fork, and a nose over.
- [NTSB CEN20LA185](https://openairdocs.org/ntsb/CEN20LA185.md): Cessna 501 · Houston, TX · Accident · No injuries · Class 3 · Limited · Final report · May 20, 2020 · N501KM · Substantial damage
  > The malfunction of the left main landing gear down lock, which resulted in a gear collapse upon landing.
- [NTSB CEN20LA175](https://openairdocs.org/ntsb/CEN20LA175.md): Beech 1900 · San Antonio, TX · Accident · No injuries · Class 3 · Limited · Final report · May 9, 2020 · N31704 · Substantial damage
  > The failure of the left main landing gear upper drag leg arm due to substandard mechanical properties, which resulted in a collapse of the landing gear upon landing.
- [NTSB ERA20CA171](https://openairdocs.org/ntsb/ERA20CA171.md): Mooney M20K · Athens, GA · Accident · No injuries · Class 4 · Data collection · Final report · May 3, 2020 · N231DW · Substantial damage
  > The collapse of the left main landing gear for reasons that could not be determined based on the available information.
- [NTSB ERA20CA152](https://openairdocs.org/ntsb/ERA20CA152.md): Holmgren Bearhawk · Ahoskie, NC · Accident · No injuries · Data collection · Final report · Apr 17, 2020 · N118CR · Substantial damage
  > The collapse of the right main landing gear during a bounced, crosswind landing.
- [NTSB CEN20LA084](https://openairdocs.org/ntsb/CEN20LA084.md): Beech 200 · St Louis, MO · Accident · No injuries · Class 3 · Limited · Final report · Feb 6, 2020 · N405PT · Substantial damage
  > The pilot’s loss of directional control and the subsequent nose landing gear collapse of for undetermined reasons.
- [NTSB DCA20WA073](https://openairdocs.org/ntsb/DCA20WA073.md): Boeing 757 · Keflavik, Iceland · Incident · No injuries · Foreign investigation · Jan 31, 2020 · TF-FIA · Minor damage
  > The Icelandic Transportation Safety Board (ITSB) has informed the NTSB of an incident involving a Boeing 757-200, which occurred on February 7, 2020. The NTSB has appointed a U.S Accredited Representative to assist the ITSB investigation under the provisions…
- [NTSB GAA20WA105](https://openairdocs.org/ntsb/GAA20WA105.md): Cessna 172 · Cork, Ireland · Accident · Minor injuries · Foreign investigation · Jan 6, 2020 · EI-DDX · Substantial damage
  > The government of Ireland has notified the NTSB of an accident involving a CESSNA 172 airplane that occurred on January 06, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of Ireland's investigation under the provisions…

## 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 year(c."eventDate") = 2020
  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
```

This list as a web page: https://openairdocs.org/ntsb-events/094/cases?year=2020

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