# NTSB investigations: Allison 250-C20 series, KY

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 WPR18LA164](https://openairdocs.org/ntsb/WPR18LA164.md): Bell 206 · Sanders, KY · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 5, 2018 · N518Z · Substantial damage
  > A partial loss of engine power for undetermined reasons, and a loss of main rotor rpm during the subsequent autorotation, which resulted in a hard landing.
- [NTSB GAA17CA402](https://openairdocs.org/ntsb/GAA17CA402.md): Bell 206 · Uniontown, KY · Accident · No injuries · Data collection · Final report · Jun 30, 2017 · N60KH · Substantial damage
  > The pilot's failure to maintain adequate separation from power lines, which resulted in a loss of helicopter control.
- [NTSB ERA13TA341](https://openairdocs.org/ntsb/ERA13TA341.md): Mcdonnell Douglas Helicopter 369E · Jackson, KY · Accident · Serious injuries · Final report · Jul 29, 2013 · N1608D · Destroyed
  > The helicopter pilot's inadvertent collision with an unmarked and uncharted utility wire of which he was unaware.
- [NTSB ERA13LA236](https://openairdocs.org/ntsb/ERA13LA236.md): Bell 206B · Hartford, KY · Accident · No injuries · Limited investigation · Final report · May 10, 2013 · N94PH · Substantial damage
  > The pilot’s failure to avoid a powerline that crossed a field that he was spraying. Contributing to the collision was the company’s failure to specifically mention that flight hazards be identified during a pre-work conference.
- [NTSB NYC06TA190](https://openairdocs.org/ntsb/NYC06TA190.md): MD Helicopter 500N · Louisville, KY · Accident · Minor injuries · Final report · Aug 2, 2006 · N520AP · Substantial damage
  > The pilot's failure to maintain control of the helicopter and the flight instructor's inadequate supervision, which resulted in a hard landing and subsequent rollover.
- [NTSB IAD01TA051](https://openairdocs.org/ntsb/IAD01TA051.md): Hughes 369D · Taylorsville, KY · Accident · Minor injuries · Final report · Apr 29, 2001 · N50AP · Substantial damage
  > the flight instructor's inadequate aircraft control during a practice autorotation which resulted in a hard landing.

## 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" = 'KY' 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 ('03020'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=03020&state=KY

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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.