# NTSB investigations: Pratt & Whitney PT6 series, 2012

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 WPR13IA020](https://openairdocs.org/ntsb/WPR13IA020.md): Agusta A119 · Dolan Springs, AZ · Incident · No injuries · Incident investigation · Final report · Oct 20, 2012 · N207CF · Minor damage
  > Insufficient clearance between a truck and the main rotor blades of a helicopter on the ground with the engine running because of the lack of on-scene coordination between the agencies that responded to and were tasked with managing the vehicle accident site.
- [NTSB CEN12FA250](https://openairdocs.org/ntsb/CEN12FA250.md): Sikorsky S-76B · Gulf of Mexico, LA · Accident · No injuries · Field investigation · Final report · Apr 17, 2012 · N56RD · Substantial damage
  > The intermittent loss of engine power due to a "stuck" stepper motor in the No. 2 engine's fuel control as a result of an inadequate overhaul. Contributing to the accident was the pilot's decision to continue flying the helicopter with a known defect, his…

## 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 year(c."eventDate") = 2012
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52033'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52033&year=2012

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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.