# NTSB investigations: Lycoming O-360 series: 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 WPR21LA117](https://openairdocs.org/ntsb/WPR21LA117.md): Piper PA-44-180 · Redmond, OR · Accident · No injuries · Class 3 · Limited · Final report · Feb 7, 2021 · N125MG · Substantial damage
  > Failure of the landing gear strut piston tube due to fatigue cracking from corrosion pitting.
- [NTSB WPR17LA165](https://openairdocs.org/ntsb/WPR17LA165.md): Lake LA 4 · Byron, CA · Accident · No injuries · Class 3 · Limited · Final report · Jul 25, 2017 · N7628L · Substantial damage
  > The pilot’s failure to activate the hydraulic system during the approach, and his failure to ensure that the landing gear was down and locked before touchdown. Contributing to the accident was the pilot's decision to operate the airplane with an inoperative…
- [NTSB GAA17CA301](https://openairdocs.org/ntsb/GAA17CA301.md): Zwicker Murray R Glastar · Napa, CA · Accident · No injuries · Data collection · Final report · Apr 30, 2017 · N89SR · Substantial damage
  > The amphibious float-equipped airplane's encounter with a submerged object during a water landing, which resulted in a nose-over.
- [NTSB ERA14IA370](https://openairdocs.org/ntsb/ERA14IA370.md): Piper PA-44-180 · Jacksonville, FL · Incident · No injuries · Incident investigation · Final report · Jul 31, 2014 · N216FW · Minor damage
  > The nose landing gear collapse for reasons that could not be determined because examination of the airplane revealed no anomalies.
- [NTSB WPR11LA436](https://openairdocs.org/ntsb/WPR11LA436.md): Tubbs S/Performance PA-18 225DD · Mile Hi Landing Strip, ID · Accident · No injuries · Limited investigation · Final report · Aug 25, 2011 · N727WW · Substantial damage
  > The collapse of the left landing gear during landing for undetermined reasons.
- [NTSB ANC08CA103](https://openairdocs.org/ntsb/ANC08CA103.md): Bellanca 8GCBC · Northway, AK · Accident · No injuries · Data collection · Final report · Aug 9, 2008 · N2975Q · Substantial damage
  > The pilot's inadequate evaluation of weather conditions while landing, which resulted in a hard landing. A factor contributing to the accident was a tailwind.

## 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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41575')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND 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?engine=41575

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.