# NTSB investigations: Pratt & Whitney Canada PT6A-60A, 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 ANC26LA038](https://openairdocs.org/ntsb/ANC26LA038.md): Textron B300C · Salcha, AK · Accident · No injuries · Class 4 · Limited · Final report · May 5, 2026 · N67RF · Substantial damage
  > An in-flight collision with a bird during cruise flight.
- [NTSB ANC24LA064](https://openairdocs.org/ntsb/ANC24LA064.md): Dehavilland DHC-2T · Petersville, AK · Accident · No injuries · Class 3 · Limited · Final report · Jul 13, 2024 · N535KT · Substantial damage
  > An in-flight loss of thrust due to an uncommanded feathering of the propeller for reasons that could not be determined.
- [NTSB ANC21LA073](https://openairdocs.org/ntsb/ANC21LA073.md): Cessna 208 · Fairbanks, AK · Accident · No injuries · Class 3 · Limited · Final report · Aug 16, 2021 · N97HA · Substantial damage
  > The pilot’s unexpected encounter with supercooled liquid droplets (SLD), which resulted in a loss of control due to ice accumulation. Contributing to the accident were: (1) the pilot’s failure to maintain the minimum airspeed for flight in icing conditions,…
- [NTSB ANC12CA042](https://openairdocs.org/ntsb/ANC12CA042.md): Beech 1900C · McGrath, AK · Accident · No injuries · Data collection · Final report · May 24, 2012 · N111AX · Substantial damage
  > The pilot's unstable approach and overrotation, which resulted in a tailstrike.
- [NTSB ANC11LA004](https://openairdocs.org/ntsb/ANC11LA004.md): Beech 1900C · Sitka, AK · Accident · No injuries · Limited investigation · Final report · Oct 18, 2010 · N111AX · Substantial damage
  > A lightning strike which resulted in substantial damage to the elevator.
- [NTSB ANC08IA026](https://openairdocs.org/ntsb/ANC08IA026.md): Beech 1900 · Aniak, AK · Incident · Minor injuries · Incident investigation · Final report · Dec 17, 2007 · N111AX · No damage
  > A hazardous leak from carbon dioxide cylinders due to the failure of the flight crew to properly load and secure the cylinders, resulting in crew incapacitation. Factors contributing to the incident were improper hazardous materials procedures used by the…
- [NTSB ANC05LA025](https://openairdocs.org/ntsb/ANC05LA025.md): de Havilland DHC-6-200 · Toksook Bay, AK · Accident · No injuries · Limited investigation · Final report · Jan 27, 2005 · N201EH · Substantial damage
  > The pilot's inadequate compensation for the gusty crosswind wind condition, which resulted in a loss of control during the landing roll, and the collapse of the nose landing gear. Factors associated with the accident were the crosswind and wind gusts.
- [NTSB ANC04LA037](https://openairdocs.org/ntsb/ANC04LA037.md): Piper PA-31T3 · Kaktovik, AK · Accident · No injuries · Limited investigation · Final report · Mar 21, 2004 · N223CS · Substantial damage
  > The pilot's selection of unsuitable terrain for landing, which resulted in the airplane colliding with drifted snow during the landing roll. Factors contributing to the accident were a snow covered runway, airport personnel's failure to remove accumulated…
- [NTSB ANC02FA106](https://openairdocs.org/ntsb/ANC02FA106.md): de Havilland DHC-2 MK3 · Aleknagik, AK · Accident · 1 fatal · Field investigation · Final report · Aug 29, 2002 · N4478 · Substantial damage
  > The pilot's failure to use a checklist to ensure the airplane was in the proper landing configuration, which precipitated an inadvertent water landing on amphibious floats with the wheels extended. A factor contributing to the accident was the pilot's failure…
- [NTSB ANC98LA148](https://openairdocs.org/ntsb/ANC98LA148.md): Beech 1900C · St. Mary'S, AK · Accident · No injuries · Limited investigation · Final report · Sep 12, 1998 · N1563C · Substantial damage
  > The pilot's failure to follow the aircraft checklist, and an inadvertent wheels up landing. A factor was the pilot's distraction due to a malfunction of the flap system
- [NTSB ANC98LA010](https://openairdocs.org/ntsb/ANC98LA010.md): Piper PA-31-T3 · Tyonek, AK · Accident · No injuries · Limited investigation · Final report · Nov 11, 1997 · N314SC · Substantial damage
  > An on-ground collision with an animal (moose). Factors in the accident were night VFR conditions that restricted the pilot's visual lookout, and the lack of an airport perimeter fence.
- [NTSB ANC92LA077](https://openairdocs.org/ntsb/ANC92LA077.md): De Havilland DHC-2-T · Alexander Creek, AK · Accident · No injuries · Limited investigation · Final report · May 24, 1992 · N4478 · Substantial damage
  > The pilot's inadvertent deactivation of the engine's fuel supply by switching off the fuel shut off. Factor related to the accident was the soft mud in the forced landing area.
- [NTSB ANC92IA030](https://openairdocs.org/ntsb/ANC92IA030.md): Piper PA-31-T3 · Anchorage, AK · Incident · No injuries · Incident investigation · Final report · Jan 28, 1992 · N314SC · Minor damage
  > The pilot's continued taxi after becoming lost or disoriented. Factors relating to the accident were the whiteout conditions caused by the freshly falling and blowing snow and the inadequate snow removal by airport personnel.
- [NTSB ANC92FA006](https://openairdocs.org/ntsb/ANC92FA006.md): Beech BE-99 · Allakaket, AK · Accident · No injuries · Field investigation · Final report · Oct 19, 1991 · N299GL · Substantial damage
  > Was the pilot-in-command misjudged the proper touchdown point on the runway. Contributing to the accident was the snow-covered terrain and a snowbank.
- [NTSB ANC90LA001](https://openairdocs.org/ntsb/ANC90LA001.md): Cessna 208 · King Salmon, AK · Accident · No injuries · Limited investigation · Final report · Oct 2, 1989 · N9382F · Substantial damage
  > Improper planning/decision by the pilot. Contributing factors were: the surrounding terrain, unfavorable wind, downdraft, the pilot's lack of familiarity with the geographical area, and his self induced pressure.
- [NTSB ANC89IA059](https://openairdocs.org/ntsb/ANC89IA059.md): De Havilland DHC-6-100 · Barrow, AK · Incident · No injuries · Incident investigation · Final report · Apr 14, 1989 · N100AP · No damage
  > The propagation of a fatigue crack from multiple origins due to manufacturing defects in the elevator bellcrank mounting quadrant.
- [NTSB ANC86LA025](https://openairdocs.org/ntsb/ANC86LA025.md): de Havilland DHC-6 · Mekoryuk, AK · Accident · No injuries · Limited investigation · Final report · Feb 7, 1986 · N204EH · Substantial damage
  > The PIC stated that he was landing to the southwest because the fog was obscuring the apch path to rwy 05. After aligning with rwy 23, the acft drifted off course. The plt was attempting to realign the acft with the rwy when he touched down in a bank and…
- [NTSB ANC84MA037](https://openairdocs.org/ntsb/ANC84MA037.md): Embraer EM-110P1 · Cordova, AK · Accident · No injuries · Major investigation · Final report · Feb 22, 1984 · N103VA · Substantial damage
  > During a landing at night, the acft touched down slightly left of the rwy centerline, which was not visible, & began veering to the left. The plt reported that the acft did not respond to rudder inputs, rudder tiller inputs or differential reverse thrust. It…
- [NTSB ANC79FA004](https://openairdocs.org/ntsb/ANC79FA004.md): Dehavnd Can DHC-6 · Barrow, AK · Accident · 1 fatal · Closed · Oct 13, 1978 · N4048B · Substantial damage
- [NTSB ANC76DAA61](https://openairdocs.org/ntsb/ANC76DAA61.md): Pilatus PC6BH2 · Wainwright, AK · Accident · Minor injuries · Closed · Aug 29, 1976 · N346F · Substantial damage
- [NTSB ANC73AA037](https://openairdocs.org/ntsb/ANC73AA037.md): Dehavilland DHC-2 · Sagwon, AK · Accident · Serious injuries · Closed · Dec 11, 1972 · N53011 · Substantial damage
- [NTSB ANC73FAG57](https://openairdocs.org/ntsb/ANC73FAG57.md): Pilatus PC6BH2 · Anchorage, AK · Accident · No injuries · Closed · Nov 8, 1972 · N2854T · Substantial damage
- [NTSB ANC72AA010](https://openairdocs.org/ntsb/ANC72AA010.md): Pilatus PC6-H2 · Akiak, AK · Accident · No injuries · Closed · Aug 16, 1971 · N2854T · Substantial damage
- [NTSB ANC70A0040](https://openairdocs.org/ntsb/ANC70A0040.md): Dehavilland DHC-2 · Barrow, AK · Accident · No injuries · Closed · Nov 10, 1969 · N4478 · Substantial damage
- [NTSB ANC67A0041](https://openairdocs.org/ntsb/ANC67A0041.md): Pilatus PC6BH2 · Kotzebue, AK · Accident · No injuries · Closed · Oct 28, 1966 · N2854T · 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 ('52043', '51999'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52043&state=AK

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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.