# NTSB investigations: Bell 206B: Unknown or undetermined

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 CEN22LA323](https://openairdocs.org/ntsb/CEN22LA323.md): Bell 206B · Verona, IL · Accident · No injuries · Class 3 · Limited · Final report · Jul 18, 2022 · N6BU · Substantial damage
  > A loss of rotor rpm for reasons that could not be determined.
- [NTSB WPR22LA221](https://openairdocs.org/ntsb/WPR22LA221.md): Bell 206B · Stockton, CA · Accident · No injuries · Class 3 · Limited · Final report · Jun 17, 2022 · N90326 · Substantial damage
  > Tail rotor blade impact with an unidentified object, which resulted in the loss of control and subsequent rollover of the helicopter.
- [NTSB CEN22FA053](https://openairdocs.org/ntsb/CEN22FA053.md): Bell 206 · Perry, OK · Accident · 1 fatal · Class 3 · Field · Final report · Nov 28, 2021 · N59600 · Destroyed
  > A loss of lateral control during a hover that resulted in an impact with terrain. Based on the available evidence, the reason for the loss of lateral control could not be determined.
- [NTSB CEN20LA328](https://openairdocs.org/ntsb/CEN20LA328.md): Bell 206 · Marathon, TX · Accident · 3 fatal · Class 3 · Limited · Final report · Aug 8, 2020 · N284S · Destroyed
  > The in-flight loss of helicopter control for reasons that could not be determined based on the available evidence.
- [NTSB ERA19WA176](https://openairdocs.org/ntsb/ERA19WA176.md): Bell 206 · La Vega, Dominican Republic · Accident · 2 fatal · Foreign investigation · May 21, 2019 · N9956K · 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1181511')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '000' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/000/sequence?model=1181511

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