# NTSB investigations: Allison 250-C20 series, NV

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 WPR20CA162](https://openairdocs.org/ntsb/WPR20CA162.md): Bell 206 · Elko, NV · Accident · No injuries · Class 4 · Data collection · Final report · May 30, 2020 · N401HP · Substantial damage
  > The pilot's failure to maintain helicopter control in gusting wind that resulted in a loss in altitude and subsequent collision with a fence.
- [NTSB GAA18CA512](https://openairdocs.org/ntsb/GAA18CA512.md): Bell 206 · Battle Mountain, NV · Accident · No injuries · Class 4 · Data collection · Final report · Aug 18, 2018 · N8052G · Destroyed
  > The pilot's failure to maintain the proper altitude and airspeed while flying in a canyon in gusting wind conditions.
- [NTSB WPR13GA128](https://openairdocs.org/ntsb/WPR13GA128.md): Bell 206B · Eureka, NV · Accident · 1 fatal · Final report · Feb 18, 2013 · N20620 · Substantial damage
  > The pilot’s failure to maintain clearance from a wire while maneuvering during low-altitude operations. Contributing to the accident was task- and/or work-related fatigue.
- [NTSB LAX07CA177](https://openairdocs.org/ntsb/LAX07CA177.md): MD Helicopters 500-E · Yerington, NV · Accident · Minor injuries · Data collection · Final report · May 27, 2007 · N526BH · Substantial damage
  > The failure of the student and instructor to maintain an adequate main rotor rpm, and the instructor’s inadequate in-flight supervision while conducting a low-level simulated emergency procedure, which resulted in a hard landing.
- [NTSB LAX07CA034](https://openairdocs.org/ntsb/LAX07CA034.md): Bell 206B · Boulder City, NV · Accident · No injuries · Data collection · Final report · Nov 11, 2006 · N59571 · Substantial damage
  > the pilot's inadequate planning and decision in his failure to reduce the engine throttle to ground idle prior to exiting the helicopter.
- [NTSB DEN90T#A01](https://openairdocs.org/ntsb/DEN90T%23A01.md): MBB BO-105S · Mercury, NV · Accident · No injuries · Class 3 · Final report · Oct 2, 1989 · N7EG · Substantial damage
- [NTSB LAX83FA400](https://openairdocs.org/ntsb/LAX83FA400.md): Bell 206-B · Battle Mountain, NV · Accident · Minor injuries · Field investigation · Final report · Aug 22, 1983 · N17355 · Destroyed
  > The helicopter lost power during takeoff,touched down on the left skid,bounced and rolled over. The flt had originated at 1315 at a local field and proceeded to pick up a passenger at another location. The acft had just landed, picked up the passenger and was…
- [NTSB LAX82DXQ02](https://openairdocs.org/ntsb/LAX82DXQ02.md): Bell 206B · Ely, NV · Accident · No injuries · Closed · Nov 17, 1981 · N3893Y · 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" = 'NV' 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=NV

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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.