# NTSB investigations: Bell 47G-5A, 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 WPR14CA115](https://openairdocs.org/ntsb/WPR14CA115.md): Bell 47G 5A · Greenfield, CA · Accident · No injuries · Data collection · Final report · Feb 18, 2014 · N715BH · Substantial damage
  > The pilot's failure to maintain clearance from a power pole during low-altitude maneuvering flight.
- [NTSB WPR13CA084](https://openairdocs.org/ntsb/WPR13CA084.md): Bell 47G · Five Points, CA · Accident · Minor injuries · Data collection · Final report · Jan 3, 2013 · N14841 · Substantial damage
  > The pilot’s failure to maintain clearance with a telephone pole during a low-level maneuver.
- [NTSB LAX97LA006](https://openairdocs.org/ntsb/LAX97LA006.md): Bell 47G-5A · King City, CA · Accident · No injuries · Limited investigation · Final report · Oct 7, 1996 · N8135J · Substantial damage
  > the pilot's failure to maintain adequate rotor rpm during the takeoff initial climb.
- [NTSB LAX91LA128](https://openairdocs.org/ntsb/LAX91LA128.md): Bell 47G-5A · Farmington, CA · Accident · No injuries · Limited investigation · Final report · Mar 10, 1991 · N59403 · Substantial damage
  > The contamination of the engine induction air filter. Soft terrain during the touchdown was a factor in the accident.
- [NTSB LAX88DUG07](https://openairdocs.org/ntsb/LAX88DUG07.md): Bell 47G-5A · Perris, CA · Accident · No injuries · Final report · Sep 18, 1988 · N4099G · Substantial damage
  > On liftoff, tail rotor control was lost and helicopter spun with main rotor striking terrain. Investigation revealed fatigue failure of engine mounting cage. The eng basket had failed and allowed the t/r drive shaft to pull out of the coupling. The basket had…
- [NTSB LAX84LA424](https://openairdocs.org/ntsb/LAX84LA424.md): Bell 47G-5A · Winterhaven, CA · Accident · No injuries · Limited investigation · Final report · Aug 1, 1984 · N4099G · Substantial damage
  > The acft collided with the ground during a takeoff attempt. According to the plt, after the acft was loaded with 60 gallons of pesticide a takeoff was begun. The acft became airborne and traveled about 300 ft when the plt inadvertantly allowed the rotor RPM…
- [NTSB LAX81FVM21](https://openairdocs.org/ntsb/LAX81FVM21.md): Bell 47G-5A · Soledad, CA · Accident · Serious injuries · Closed · May 3, 1981 · N2994W · Destroyed

## 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 ('1181034'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=1181034&state=CA

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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.