# NTSB investigations: Pratt & Whitney Canada PT6A-6 series, CO

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 ENG12IA014](https://openairdocs.org/ntsb/ENG12IA014.md): Beech 1900D · Denver International Airport, CO · Incident · No injuries · Incident investigation · Final report · Feb 17, 2012 · N210GL · Minor damage
  > A failure of the nose landing gear end cap due to fatigue. Contributing to the failure were the ineffective inspection and the unknown effect of grain direction on fatigue life.
- [NTSB CEN11IA341](https://openairdocs.org/ntsb/CEN11IA341.md): Beech 1900D · Denver, CO · Incident · No injuries · Incident investigation · Final report · May 17, 2011 · N218YV · Minor damage
  > The fatigue failure of the nose landing gear (NLG) end cap, which resulted in insufficient hydraulic pressure to secure the left main landing gear into the down and locked position. Contributing to the fatigue failure was the NLG end cap’s non-optimum grain…
- [NTSB DEN08GA076](https://openairdocs.org/ntsb/DEN08GA076.md): Air Tractor AT-602 · Fort Carson, CO · Accident · 1 fatal · Final report · Apr 16, 2008 · N602AA · Destroyed
  > The pilot's failure to maintain aircraft control following the jettison of the load during an aerial fire flighting mission, which resulted in an inadvertent stall and impact with terrain. Contributing to the accident were the improperly configured aircraft…
- [NTSB DEN07LA051](https://openairdocs.org/ntsb/DEN07LA051.md): Piaggio Industrie P180 · Eagle, CO · Accident · No injuries · Limited investigation · Final report · Jan 16, 2007 · N17PA · Substantial damage
  > The pilot's failure to maintain directional control of the airplane during the landing roll.
- [NTSB DEN04IA059](https://openairdocs.org/ntsb/DEN04IA059.md): Beech 1900D · Denver, CO · Incident · No injuries · Incident investigation · Final report · Apr 9, 2004 · N210GL · No damage
  > arcing of the windshield deicing system. Factors contributing to the incident were the improper inspection of the windshield's exterior seal, deterioration of the windshield seal, and water penetration through the deteriorated seal.
- [NTSB DEN03LA043](https://openairdocs.org/ntsb/DEN03LA043.md): Socata TBM 700 · Aspen, CO · Accident · No injuries · Limited investigation · Final report · Feb 15, 2003 · N700GJ · Substantial damage
  > the dual student's failure to maintain aircraft control and the inadequate supervision by the flight instructor. Contributing factors include the tailwind and the turbulence.
- [NTSB DEN99IA136](https://openairdocs.org/ntsb/DEN99IA136.md): Beech 1900D · Denver, CO · Incident · No injuries · Incident investigation · Final report · Aug 5, 1999 · N101UX · 2 aircraft · Minor damage
  > See cause/factor narrative for DEN 99-I-A136A.

## 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" = 'CO' 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 ('52150'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52150&state=CO

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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.