# Final NTSB investigations: Pratt & Whitney Canada PT6A-135

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 ERA20LA206](https://openairdocs.org/ntsb/ERA20LA206.md): Piper PA 31T · Eatonton, GA · Accident · 5 fatal · Class 3 · Limited · Final report · Jun 5, 2020 · N135VE · Destroyed
  > The pilot’s failure to maintain control of the airplane while maneuvering in instrument meteorological conditions, which placed the airplane in an unusual attitude from which the pilot could not recover. Contributing to the accident was the convective and…
- [NTSB ERA20LA192](https://openairdocs.org/ntsb/ERA20LA192.md): Beech F90 · Knoxville, TN · Accident · No injuries · Class 3 · Limited · Final report · May 18, 2020 · N960V · Substantial damage
  > A failure of the left main landing gear scissors, which resulted in a landing gear collapse following a precautionary landing with the landing gear in an intermediate position..
- [NTSB CEN13IA177](https://openairdocs.org/ntsb/CEN13IA177.md): TTX Air Lancair · Indianapolis, IN · Incident · No injuries · Incident investigation · Final report · Feb 21, 2013 · N613TX · Minor damage
  > The pilots' failure to verify landing gear extension before landing.
- [NTSB CHI86LA143](https://openairdocs.org/ntsb/CHI86LA143.md): Beech BE-F90 · Eaton, IN · Accident · No injuries · Limited investigation · Final report · May 20, 1986 · N960V · Substantial damage
  > The acft had made a stop at muncie to pick up a fourth passenger. After boarding, the passenger closed the cabin door. After departure and climbing thru 6,000 ft the airstair separated from the aircraft and struck the vertical stabilizer.

## 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."completionStatus" = 'Completed'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52173'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52173&status=final

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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.