# NTSB investigations: Helio H-295, MT

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 GAA18CA481](https://openairdocs.org/ntsb/GAA18CA481.md): Helio H 295 · Great Falls, MT · Accident · No injuries · Data collection · Final report · Aug 11, 2018 · N77TR · Substantial damage
  > The pilot’s failure to maintain lateral control of the airplane during takeoff in a quartering tailwind.
- [NTSB DEN85LA011](https://openairdocs.org/ntsb/DEN85LA011.md): Helio Courier · Livingston, MT · Accident · No injuries · Limited investigation · Final report · Oct 18, 1984 · N700HC · Substantial damage
  > Prior to the attempted takeoff fss advised the plt of wind from 250 deg at 20 gusting to 30 KTS and informed him that rwy 26 would be the preferred rwy. The plt elected to use rwy 22. During the takeoff roll the right wing rose in a gust but control was…

## 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" = 'MT' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4300802'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=4300802&state=MT

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