# Fatal NTSB investigations: Bell 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 LAX96FA045](https://openairdocs.org/ntsb/LAX96FA045.md): Bell 47D1 · Shafter, CA · Accident · 2 fatal · Field investigation · Final report · Nov 12, 1995 · N78900 · Destroyed
  > the pilot misjudged the altitude and ground clearance while performing an unwarranted low altitude flight maneuver.
- [NTSB FTW95FA181](https://openairdocs.org/ntsb/FTW95FA181.md): Bell 47D1 · Ardmore, OK · Accident · 2 fatal · Field investigation · Final report · Apr 25, 1995 · N2202C · Destroyed
  > Inflight collision with a power transmission array static line when the flight instructor and dual (private pilot) student failed to maintain adequate visual lookout.
- [NTSB MIA94FA125](https://openairdocs.org/ntsb/MIA94FA125.md): Bell 47D1 · Marathon, FL · Accident · 2 fatal · Field investigation · Final report · Apr 22, 1994 · N9660 · Destroyed
  > Separation of the tail rotor gearbox and tail rotor blades for an undetermined reason. Factors related to the accident were: failure of maintenance personnel to follow the proper maintenance procedure after a previous tail rotor strike, and failure to conduct…
- [NTSB NYC90DGM02](https://openairdocs.org/ntsb/NYC90DGM02.md): Bell 47D1 · Meadville, PA · Accident · 1 fatal · Final report · Jun 22, 1990 · N310A · Destroyed
  > The pilot's failure to see and avoid the power lines.
- [NTSB NYC89DNE01](https://openairdocs.org/ntsb/NYC89DNE01.md): Bell 47D1 · Russell, MA · Accident · 1 fatal · Final report · Dec 2, 1988 · N163B · Destroyed
  > A pilot induced low rotor RPM condition, followed by blade flapping as the main rotor blade contacted the tail of the helicopter.
- [NTSB CHI80FEC26](https://openairdocs.org/ntsb/CHI80FEC26.md): Bell 47D1 · Munith, MI · Accident · 1 fatal · Closed · Jul 30, 1980 · N3656F · Substantial damage
- [NTSB ANC76DAH16](https://openairdocs.org/ntsb/ANC76DAH16.md): Bell 47D-1 · Birchwood, AK · Accident · 1 fatal · Closed · May 25, 1976 · N117B · Substantial damage
- [NTSB NYC72FID13](https://openairdocs.org/ntsb/NYC72FID13.md): Bell 47D-1 · Millers Tavern, VA · Accident · 1 fatal · Closed · Sep 14, 1971 · N9115R · Destroyed
- [NTSB IAD70A0013](https://openairdocs.org/ntsb/IAD70A0013.md): Bell 47D1 · Cherokee, NC · Accident · 1 fatal · Closed · Aug 12, 1969 · N2794A · Destroyed
- [NTSB NYC69A0105](https://openairdocs.org/ntsb/NYC69A0105.md): Bell 47D1 · Gettysburg, PA · Accident · 1 fatal · Closed · May 25, 1969 · N6598D · Destroyed
- [NTSB OAK67A0071](https://openairdocs.org/ntsb/OAK67A0071.md): Bell 47D1 · Martinez, CA · Accident · 3 fatal · Closed · Mar 25, 1967 · N74123 · 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."highestInjuryLevel" = 'Fatal'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1180802'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?fatal=1&model=1180802

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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.