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

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 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 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."eventStateOrRegion" = 'AK' AND c."eventCountry" = 'USA'
  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&state=AK

---
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.