# NTSB investigations: Bell 47G-5: Loss of control in flight

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 WPR16LA099](https://openairdocs.org/ntsb/WPR16LA099.md): Bell 47G 5 · San Ardo, CA · Accident · Minor injuries · Class 3 · Limited · Final report · Apr 29, 2016 · N6288N · Substantial damage
  > The failure of the pin in the outboard end of the lateral flight control torque tube.
- [NTSB WPR15LA193](https://openairdocs.org/ntsb/WPR15LA193.md): Bell 47G 5 · Salinas, CA · Accident · 1 fatal · Limited investigation · Final report · Jun 20, 2015 · N4427F · Substantial damage
  > The non-instrument-rated pilot's visual flight rules flight into instrument meteorological conditions, which resulted in his spatial disorientation and loss of helicopter control. Contributing to the accident was the pilot's impairment by high-dose opioid use.
- [NTSB WPR11CA394](https://openairdocs.org/ntsb/WPR11CA394.md): Bell 47G · Porterville, CA · Accident · No injuries · Data collection · Final report · Jul 31, 2011 · N6260C · Substantial damage
  > The pilot's decision to takeoff in a tailwind condition, and his subsequent failure to attain sufficient lift during the takeoff.
- [NTSB WPR10LA446](https://openairdocs.org/ntsb/WPR10LA446.md): Bell 47G · Salinas, CA · Accident · Serious injuries · Limited investigation · Final report · Sep 3, 2010 · N4427F · Substantial damage
  > The pilot's visual flight rules flight into instrument meteorological conditions, which resulted in his spatial disorientation and loss of helicopter control.

## 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 ('1181032')
    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" = '240' 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/240/sequence?model=1181032

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