# NTSB investigations: Helio H-250, CA

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 LAX95FA161](https://openairdocs.org/ntsb/LAX95FA161.md): Helio H-250 · Round Mountain, CA · Accident · 2 fatal · Field investigation · Final report · Apr 12, 1995 · N5461E · Destroyed
  > the pilot's poor preflight planning/preparation and in-flight decision by continuing VFR flight into instrument meteorological conditions. The pilot's delay in returning to the departure airport, the low clouds, and low visibility were factors in this…
- [NTSB LAX85LA300](https://openairdocs.org/ntsb/LAX85LA300.md): Helio H-250 · Imperial, CA · Accident · No injuries · Limited investigation · Final report · Jun 30, 1985 · N55XV · Substantial damage
  > This plt executed a full flap 40 mph landing. After touchdown the left main landing gear lifted off the rwy, & the plt was not able to lower it using rudder, brakes, & aileron control. No attempt was made o use power to regain directinal control as the acft…
- [NTSB LAX85LA118](https://openairdocs.org/ntsb/LAX85LA118.md): Helio H-250 · Palm Springs, CA · Accident · No injuries · Limited investigation · Final report · Jan 21, 1985 · N55XV · Substantial damage
  > The acft bounced upon landing in calm wind conditions and the left main gear leg broke off whereupon the acft ground looped to the right. Inspection revealed rust on both sides of the gear strut about 6 inches below the fuselage where a brace is welded to the…
- [NTSB LAX67D0249](https://openairdocs.org/ntsb/LAX67D0249.md): Helio H-250 · New Cuyama, CA · Accident · No injuries · Closed · Dec 13, 1966 · N5444E · 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" = 'CA' 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 ('4300302'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=4300302&state=CA

---
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.