# NTSB investigations: Bell 47G-3B-2: Loss of engine power

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 SEA03LA023](https://openairdocs.org/ntsb/SEA03LA023.md): Bell 47G · Idaho Falls, ID · Accident · No injuries · Limited investigation · Final report · Jan 2, 2003 · N4759R · Substantial damage
  > In-flight loss of engine power for undetermined reasons.
- [NTSB LAX91LA390](https://openairdocs.org/ntsb/LAX91LA390.md): Bell 47G-3B-2 · Chula Vista, CA · Accident · Minor injuries · Limited investigation · Final report · Sep 10, 1991 · N2618D · Substantial damage
  > The pilot's failure to maintain the proper airspeed and misjudging the landing flare altitude. The powerplant failure for an undetermined reason and the unsuitable terrain for the float equipped helicopter were factors in the accident.
- [NTSB SEA90LA048](https://openairdocs.org/ntsb/SEA90LA048.md): Bell BH-47G3B2 · Des Moines, WA · Accident · Minor injuries · Limited investigation · Final report · Mar 1, 1990 · N4073G · Destroyed
  > Partial loss of engine power, cause undetermined. The aircraft was not recovered and examination of the engine was not possible.

## 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 ('1181029', '1181036')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 350))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=1181029&occurrence=350

---
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.