# Final NTSB investigations: Pratt & Whitney Canada PT6A-20

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 CEN22FA216](https://openairdocs.org/ntsb/CEN22FA216.md): Express 2000RG · Cheyenne, WY · Accident · 1 fatal · Class 3 · Field · Final report · May 30, 2022 · N44508 · Destroyed
  > The pilot's inability to maintain proper airspeed and his exceedance of the airplane’s critical angle of attack while managing a loss of engine power and inflight fire, which resulted in an aerodynamic stall. Contributing factors to the accident were the loss…
- [NTSB WPR15LA179](https://openairdocs.org/ntsb/WPR15LA179.md): Burr Express 2000 RG · Glendale, AZ · Accident · No injuries · Limited investigation · Final report · May 29, 2015 · N44508 · Substantial damage
  > A collapse of the left main landing gear for reasons that could not be determined based on the available information.
- [NTSB FTW97LA169](https://openairdocs.org/ntsb/FTW97LA169.md): Air Tractor AT-400 · Fluvanna, TX · Accident · No injuries · Limited investigation · Final report · Apr 19, 1997 · N73127 · Substantial damage
  > The loss of engine power due to the failure of the reduction gear box. A factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW88DQG02](https://openairdocs.org/ntsb/FTW88DQG02.md): Air Tractor AT-301 · Lockney, TX · Accident · Serious injuries · Final report · Oct 19, 1987 · N73127 · Substantial damage
  > After completing a swath run, the plt began a procedure turn to the right for another run. During the maneuver, the acft stalled & turned counterclockwise for about 180 deg before impacting the ground in a nose down, left wing low attitude.

## 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 ('52239'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52239&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.