# NTSB investigations: Pratt & Whitney Canada PT6A-60A, 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 CEN10CA540](https://openairdocs.org/ntsb/CEN10CA540.md): Beech E-90 · Colorado Springs, CO · Accident · No injuries · Data collection · Final report · Sep 5, 2010 · N16LH · Substantial damage
  > The pilot’s failure to ensure that the airplane’s parking brake was properly set before diverting his attention to other tasks.
- [NTSB CEN09LA173](https://openairdocs.org/ntsb/CEN09LA173.md): Piper PA-31T · Pueblo, CO · Accident · No injuries · Limited investigation · Final report · Feb 23, 2009 · N171AF · Substantial damage
  > The pilot's improper flare and recovery from a bounced landing.
- [NTSB DEN05FA126](https://openairdocs.org/ntsb/DEN05FA126.md): Cessna 425 · Lone Tree, CO · Accident · 4 fatal · Field investigation · Final report · Aug 14, 2005 · N425SG · Destroyed
  > The pilot's failure to properly execute the published instrument approach procedure, which resulted in controlled flight into terrain.
- [NTSB DEN03LA095](https://openairdocs.org/ntsb/DEN03LA095.md): Cessna 425 · Pueblo, CO · Accident · No injuries · Limited investigation · Final report · May 31, 2003 · N425SG · Substantial damage
  > the pilot's inadvertent flight into adverse weather conditions. Contributing factors include the encounter with severe turbulence and hail.
- [NTSB DEN01IA108](https://openairdocs.org/ntsb/DEN01IA108.md): Beech 200 · Greeley, CO · Incident · No injuries · Incident investigation · Final report · May 8, 2001 · N725MC · Minor damage
  > jamming of the nose landing gear actuator due to improper painting procedures by other maintenance personnel which resulted in a wheels up landing.
- [NTSB DEN99LA108](https://openairdocs.org/ntsb/DEN99LA108.md): Beech B90 · Creede, CO · Accident · No injuries · Limited investigation · Final report · Jun 25, 1999 · N221NC · Substantial damage
  > Overload failure of the right main landing gear scissors torque link precipitated by preexisting fatigue fractures. A factor was wind shear.
- [NTSB DEN89LA058](https://openairdocs.org/ntsb/DEN89LA058.md): Piper PA-31T · Craig, CO · Accident · No injuries · Limited investigation · Final report · Jan 6, 1989 · N82290 · Substantial damage
  > Unsuitable terrain (runway condition) selected by the pilot. Factors related to the accident were: the adverse weather conditions, inadequate removal of snow from the runway by airport personnel, uneven snow covered runway, lack of visual perception by the…
- [NTSB DEN86MA061](https://openairdocs.org/ntsb/DEN86MA061.md): Cessna 425 · Granby, CO · Accident · 5 fatal · Major investigation · Final report · Jan 11, 1986 · N425SC · Destroyed
  > Drg arrival, the plt advised ARTCC that the destination arpt appeared to be covered with fog. She then canceled her IFR flt plan. According to ground witnesses, the acft made several passes over the arpt. Witnesses also rprtd that the horizontal visibility…
- [NTSB DEN78FA046](https://openairdocs.org/ntsb/DEN78FA046.md): Piper PA-31T · Lamar, CO · Accident · 4 fatal · Closed · Jun 5, 1978 · N176CC · Destroyed

## 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 ('52043', '51999'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

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

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