# Final NTSB investigations: Pratt & Whitney Canada PT6A-27 series

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 CEN19LA267](https://openairdocs.org/ntsb/CEN19LA267.md): De Havilland DHC6 · San Marcos, TX · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 15, 2019 · N322AV · Substantial damage
  > The pilot's delayed go-around attempt and the flight instructor's delayed remedial action that resulted in a nose-down impact with terrain during an attempted go-around.
- [NTSB GAA19CA251](https://openairdocs.org/ntsb/GAA19CA251.md): De Havilland DHC2 · McCarthy, AK · Accident · No injuries · Data collection · Final report · May 4, 2019 · N456SF · Substantial damage
  > The pilot's failure to maintain a proper approach path in gusting wind conditions, which resulted in the airplane landing short of the airstrip and bouncing.
- [NTSB WPR14LA313](https://openairdocs.org/ntsb/WPR14LA313.md): Eurocopter EC 130 B4 · Boulder City, NV · Accident · No injuries · Limited investigation · Final report · Jul 25, 2014 · N154GC · 2 aircraft · Substantial damage
  > The airplane flight crew’s failure to exercise the necessary vigilance and precautions and yield the right of way to the landing helicopter, which resulted in the airplane colliding with the helicopter. Contributing to the accident was the helicopter pilot’s…
- [NTSB ERA11LA239](https://openairdocs.org/ntsb/ERA11LA239.md): Beech BE99 · Cedartown, GA · Accident · No injuries · Limited investigation · Final report · Apr 10, 2011 · N899AE · Substantial damage
  > The failure of the left main landing gear bearings and supports due to inadequate lubrication by unknown maintenance personnel.
- [NTSB ANC72DAA27](https://openairdocs.org/ntsb/ANC72DAA27.md): Dehavilland DHC-6 · Prudhoe Bay, AK · Accident · No injuries · Closed · Mar 31, 1972 · N512AR · Substantial damage
- [NTSB ANC71DAA23](https://openairdocs.org/ntsb/ANC71DAA23.md): Dehavilland DHC-6 · Prudhoe Bay, AK · Accident · No injuries · Closed · Dec 1, 1970 · N512AR · Substantial damage

## 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 ('52247'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52247&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.