# Fatal NTSB investigations: Pratt & Whitney Canada PT6A-67B

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 WPR23MA113](https://openairdocs.org/ntsb/WPR23MA113.md): Pilatus PC-12/45 · Stagecoach, NV · Accident · 5 fatal · Class 2 · Major · Final report · Feb 25, 2023 · N273SM · Substantial damage
  > The pilot’s loss of control due to spatial disorientation while operating in night instrument meteorological conditions, which resulted in an in-flight breakup. Contributing to the accident was the disengagement of the autopilot for undetermined reasons, as…
- [NTSB ERA12FA385](https://openairdocs.org/ntsb/ERA12FA385.md): Pilatus PC-12/47 · Lake Wales, FL · Accident · 6 fatal · Field investigation · Final report · Jun 7, 2012 · N950KA · Substantial damage
  > The failure of the pilot to maintain control of the airplane while climbing to cruise altitude in instrument meteorological conditions (IMC) following disconnect of the autopilot. The reason for the autopilot disconnect could not be determined during…
- [NTSB WPR09MA159](https://openairdocs.org/ntsb/WPR09MA159.md): Pilatus PC-12/45 · Butte, MT · Accident · 14 fatal · Class 1 · Major · Final report · Mar 22, 2009 · N128CM · Substantial damage
  > (1) the pilot's failure to ensure that a fuel system icing inhibitor was added to the fuel before the flights on the day of the accident; (2) his failure to take appropriate remedial actions after a low fuel pressure state (resulting from icing within the…
- [NTSB SEA06FA126](https://openairdocs.org/ntsb/SEA06FA126.md): Pilatus PC-12/47 · Big Timber, MT · Accident · 2 fatal · Field investigation · Final report · Jun 24, 2006 · N768H · Destroyed
  > The flight instructor's failure to maintain an adequate airspeed while maneuvering, which led to an inadvertent stall.
- [NTSB CHI02FA284](https://openairdocs.org/ntsb/CHI02FA284.md): Pilatus PC-12/45 · Westphalia, MO · Accident · 2 fatal · Field investigation · Final report · Sep 14, 2002 · N451ES · Destroyed
  > The pilot's spatial disorientation while turning in a cruise climb in instrument meteorological conditions, which resulted in the pilot's loss of aircraft control, and his failure to recover from a resultant tight descending spiral.

## 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."highestInjuryLevel" = 'Fatal'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52158'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52158&fatal=1

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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.