# Final NTSB investigations: Helio H800

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 SEA04LA178](https://openairdocs.org/ntsb/SEA04LA178.md): Helio H800 · Fossil, OR · Accident · Serious injuries · Limited investigation · Final report · Sep 1, 2004 · N4033G · Destroyed
  > The pilot's failure to remove the aileron wing gust locks prior to flight, which resulted in a loss of control during the descent/emergency landing. A factor contributing to the accident was the pilot's inadequate preflight.
- [NTSB DEN03LA098](https://openairdocs.org/ntsb/DEN03LA098.md): Helio H800 · Cody, WY · Accident · Minor injuries · Limited investigation · Final report · Jun 7, 2003 · N4035K · Substantial damage
  > the pilot's improper preflight planning and his failure to maintain aircraft control when returning to the airport. Factors contributing to the accident were the oil leak, the attempted precautionary landing, and the downdraft.
- [NTSB FTW98LA027](https://openairdocs.org/ntsb/FTW98LA027.md): Helio H-800 · Ogden, UT · Accident · No injuries · Limited investigation · Final report · Oct 20, 1997 · N40013 · Substantial damage
  > failure of the tail wheel assembly, which rendered the aircraft uncontrollable during landing roll.

## 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."completionStatus" = 'Completed'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4300500', '4300501'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=4300500&status=final

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