# NTSB investigations: Bell 47G-3B-1, 1985

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 MIA85LA224](https://openairdocs.org/ntsb/MIA85LA224.md): Bell TH-13T · Quitman, GA · Accident · No injuries · Limited investigation · Final report · Aug 1, 1985 · N31FG · Substantial damage
  > Pilot stated that after completing a left turn at the end of a cotton field, the aircraft yawed sharply to the left and the yaw could not be controlled with cyclic control. Another left turn at the oppsite end of the field the aircraft again yawed to the…
- [NTSB SEA85LA174](https://openairdocs.org/ntsb/SEA85LA174.md): Bell 47G-3B-1 · Lebanon, OR · Accident · No injuries · Limited investigation · Final report · Jul 19, 1985 · N9417A · Substantial damage
  > The plt stated he performed 4 circling approaches over a sand bar and on the 5th approcah, rotor RPM decayed. Unable to regain the RPM, a hard landing resulted during which the main rotor blades severed the tailrotor.
- [NTSB CHI85LA275](https://openairdocs.org/ntsb/CHI85LA275.md): Bell 47G-3B-1 · Donaldson, MN · Accident · No injuries · Limited investigation · Final report · Jul 6, 1985 · N7856S · Substantial damage
  > When the plt applied pwr to level off while entering a spray the eng did not produce sufficient pwr to stop the descent. He attempted a run on landing but the uneven terrain caused substantial damage to the helicopter. Inspection of the eng revealed the…
- [NTSB SEA85LA178](https://openairdocs.org/ntsb/SEA85LA178.md): Bell 47G-3B-1 · Idaho City, ID · Accident · No injuries · Limited investigation · Final report · Jun 11, 1985 · N1333X · Substantial damage
  > While the student plt was on a x-country flt, the eng lost power after the supercharger failed. The plt stated that he was unable to maintain altitude & RPM; he subsequently made a forced landing in a heavily timbered, mountainous area.

## 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 year(c."eventDate") = 1985
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1181028', '118103A'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=1181028&year=1985

---
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.