# NTSB investigations: TCM Cont TSIO-520 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 CEN17LA351](https://openairdocs.org/ntsb/CEN17LA351.md): Cessna 340 · McKinney, TX · Accident · No injuries · Limited investigation · Final report · Sep 9, 2017 · N5870M · Substantial damage
  > The failure of the bell crank pivot bolt which resulted in the left main landing gear collapse. Contributing to the accident was the lack of landing gear inspections in accordance with the airplane manufacturer's maintenance manuals.
- [NTSB ERA17LA121](https://openairdocs.org/ntsb/ERA17LA121.md): Cessna 340 · Ft Lauderdale, FL · Accident · No injuries · Limited investigation · Final report · Mar 2, 2017 · N340DW · Substantial damage
  > Failure of the left main landing gear downlock link, which resulted in a landing gear collapse during the landing roll.
- [NTSB ERA16LA318](https://openairdocs.org/ntsb/ERA16LA318.md): Cessna P210 · Lancaster, PA · Accident · No injuries · Limited investigation · Final report · Sep 16, 2016 · N224MH · Substantial damage
  > A landing gear collapse during landing for reasons that could not be determined because postaccident examination and testing of the landing gear did not reveal any evidence of preimpact mechanical malfunctions or failures that would have precluded normal…

## 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 ('17060')
    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=17060

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