# NTSB investigations: Bell-Transworld Helicopters 47D1

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 CEN17LA113](https://openairdocs.org/ntsb/CEN17LA113.md): Bell-Transworld Helicopters 47D1 · Archer City, TX · Accident · Serious injuries · Limited investigation · Final report · Feb 9, 2017 · N2875F · Substantial damage
  > The total loss of engine power due to fuel starvation, which resulted from the pilot’s inadvertent positioning of the mixture control to the “fuel cutoff” position.
- [NTSB LAX03CA274](https://openairdocs.org/ntsb/LAX03CA274.md): Bell 47D1 · Chino, CA · Accident · Serious injuries · Data collection · Final report · Sep 2, 2003 · N64580 · Substantial damage
  > the student pilot's inappropriate remedial action through the application of excessive aft cyclic during a run-on landing. A factor in the accident was the student's disregard for company procedures.
- [NTSB LAX01FA236](https://openairdocs.org/ntsb/LAX01FA236.md): Bell 47D-1 · Riverside, CA · Accident · No injuries · Field investigation · Final report · Jul 6, 2001 · N64580 · Substantial damage
  > The engine crankshaft's failure as the result of fatigue cracking initiated by surface damage and localized overheating due to the installation at overhaul of incorrectly sized bearings.
- [NTSB CHI79FEM21](https://openairdocs.org/ntsb/CHI79FEM21.md): Bell 47D-1 · Middleville, MI · Accident · No injuries · Closed · May 19, 1979 · N64580 · Substantial damage
- [NTSB CHI77FEM34](https://openairdocs.org/ntsb/CHI77FEM34.md): Bell 47D · Byron Center, MI · Accident · Serious injuries · Closed · Jul 21, 1977 · N64580 · 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 ('1180845'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=1180845

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