# Final NTSB investigations: Bell 206B, ND

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 CHI08CA021](https://openairdocs.org/ntsb/CHI08CA021.md): Bell 206B-III · Medora, ND · Accident · Minor injuries · Data collection · Final report · Oct 18, 2007 · N51698 · Substantial damage
  > The pilot failed to maintain clearance from the fence while maneuvering at a low altitude, which resuled in the helicopter rolling over and impacting the terrain. A factor associated with the accident was the fence.
- [NTSB CHI07CA181](https://openairdocs.org/ntsb/CHI07CA181.md): Bell 206B · Grand Forks, ND · Accident · No injuries · Data collection · Final report · Jun 26, 2007 · N96ND · Destroyed
  > The certified flight instructor's inadequate compensation for the gusting wind conditions and failure to maintain control of the helicopter during a hover for takeoff. A factor contributing to the accident was the gusting wind conditions.
- [NTSB DEN86LA151](https://openairdocs.org/ntsb/DEN86LA151.md): Bell 206B · Portal, ND · Accident · Minor injuries · Limited investigation · Final report · Jun 4, 1986 · N59495 · Substantial damage
  > The plt reported that the acft hit wires at the end of a swath run. The pitch change link broke when the main rotor contacted the wires and the plt attempted to land. After touchdown, the helicopter rolled onto its side.
- [NTSB DEN82DA040](https://openairdocs.org/ntsb/DEN82DA040.md): Bell 206B III · Trenton, ND · Accident · Serious injuries · Final report · Mar 7, 1982 · N16867 · Substantial damage
  > The aircraft was hovering during a sling load operation when the engine lost power. The pilot released the load but due to low rotor RPM the aircraft landed hard, substantially damaging the aircraft. Investigaton revealed a failure of the forward male splines…

## 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" = 'ND' AND c."eventCountry" = 'USA'
  AND 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 ('1181511'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=1181511&state=ND&status=final

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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.