# NTSB investigations: Bell 47D1, 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 WPR12LA029](https://openairdocs.org/ntsb/WPR12LA029.md): Bell 47D1 · San Diego, CA · Accident · No injuries · Limited investigation · Final report · Nov 8, 2011 · N4251A · Substantial damage
  > The flight instructor's inadequate supervision of the student pilot during a simulated autorotation and the pilots’ failure to use carburetor heat while operating at reduced engine power while in carburetor icing conditions, which resulted in a loss of engine…
- [NTSB WPR11LA469](https://openairdocs.org/ntsb/WPR11LA469.md): Bell 47D1 · Ahwahnee, CA · Accident · Serious injuries · Limited investigation · Final report · Sep 27, 2011 · N9158R · Substantial damage
  > The pilot’s failure to maintain adequate main rotor rpm during the landing approach, which resulted in a loss of control.
- [NTSB LAX06LA030](https://openairdocs.org/ntsb/LAX06LA030.md): Bell 47D1 · Rancho Murieta, CA · Accident · Serious injuries · Limited investigation · Final report · Nov 10, 2005 · N16356 · Substantial damage
  > a separation of the tail rotor assembly due to the reverse bending fatigue fracture of a tail rotor pitch change link bolt, resulting in a loss of control of the helicopter, and a hard landing during the uncontrolled descent.
- [NTSB LAX05LA022](https://openairdocs.org/ntsb/LAX05LA022.md): Bell 47D1 · San Martin, CA · Accident · No injuries · Limited investigation · Final report · Oct 31, 2004 · N903B · Substantial damage
  > A loss of power for undetermined reasons.
- [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 LAX94LA235](https://openairdocs.org/ntsb/LAX94LA235.md): Bell 47D-1 · Chino, CA · Accident · No injuries · Limited investigation · Final report · Jun 2, 1994 · N14412 · Substantial damage
  > loss of aircraft control due to the pilot's failure to correctly configure the hydraulic system prior to takeoff.
- [NTSB LAX93LA010](https://openairdocs.org/ntsb/LAX93LA010.md): Bell 47-D1 · El Monte, CA · Accident · No injuries · Limited investigation · Final report · Oct 11, 1992 · N162B · Substantial damage
  > The pilot's failure to maintain the rotor RPM.
- [NTSB LAX88LA160](https://openairdocs.org/ntsb/LAX88LA160.md): Bell 47D1 · Taft, CA · Accident · No injuries · Limited investigation · Final report · Apr 13, 1988 · N917B · Substantial damage
- [NTSB LAX87LA294](https://openairdocs.org/ntsb/LAX87LA294.md): Bell 47D-1 · Taft, CA · Accident · No injuries · Limited investigation · Final report · Aug 5, 1987 · N917B · Substantial damage
  > The plt rprtd the eng lost power at about 300' AGL after the helicopter had flown aprx 2.7 hrs without refueling. He initiated an autorotative landing; however, before touchdown, the main rotor blades contacted & severed the tail boom. An exam revealed the…
- [NTSB LAX81FVG21](https://openairdocs.org/ntsb/LAX81FVG21.md): Bell 47D1 · Chico, CA · Accident · Minor injuries · Closed · Feb 28, 1981 · N12512 · Destroyed
- [NTSB LAX80FVG22](https://openairdocs.org/ntsb/LAX80FVG22.md): Bell 47D1 · Chico, CA · Accident · No injuries · Closed · Mar 23, 1980 · N12512 · Substantial damage
- [NTSB LAX80FVM17](https://openairdocs.org/ntsb/LAX80FVM17.md): Bell 47D1 · Salinas, CA · Accident · No injuries · Closed · Mar 9, 1980 · N78900 · Substantial damage
- [NTSB OAK78FVM46](https://openairdocs.org/ntsb/OAK78FVM46.md): Bell 47D1 · Castroville, CA · Accident · No injuries · Closed · Sep 17, 1978 · N78900 · Substantial damage
- [NTSB LAX78FUQ25](https://openairdocs.org/ntsb/LAX78FUQ25.md): Bell 47G · Sylmar, CA · Accident · No injuries · Closed · May 4, 1978 · N4702S · Substantial damage
- [NTSB LAX78FVA25](https://openairdocs.org/ntsb/LAX78FVA25.md): Bell 47G1 · Buttonwillow, CA · Accident · No injuries · Closed · Feb 18, 1978 · N9421H · Substantial damage
- [NTSB LAX77FUA06](https://openairdocs.org/ntsb/LAX77FUA06-201381.md): Bell 47D-1 · Long Beach, CA · Accident · Minor injuries · Closed · Feb 23, 1977 · N74120 · Substantial damage
- [NTSB LAX76FUQ32](https://openairdocs.org/ntsb/LAX76FUQ32.md): Bell 47D-1 · Lancaster, CA · Accident · No injuries · Closed · Apr 7, 1976 · N917B · Substantial damage
- [NTSB OAK76FVG43](https://openairdocs.org/ntsb/OAK76FVG43.md): Bell 47D-1 · Sacramento, CA · Accident · No injuries · Closed · Jan 13, 1976 · N2134 · Substantial damage
- [NTSB LAX76FVA18](https://openairdocs.org/ntsb/LAX76FVA18.md): Bell 47D-1 · Capistrano, CA · Accident · No injuries · Closed · Jan 1, 1976 · N9673Z · Substantial damage
- [NTSB LAX76FVA15](https://openairdocs.org/ntsb/LAX76FVA15.md): Bell 47D-1 · Palos Verdes, CA · Accident · No injuries · Closed · Oct 24, 1975 · N68627 · Destroyed
- [NTSB OAK75FVG66](https://openairdocs.org/ntsb/OAK75FVG66.md): Bell 47D-1 · Sacramento, CA · Accident · No injuries · Closed · May 13, 1975 · N342L · Substantial damage
- [NTSB OAK75DVM25](https://openairdocs.org/ntsb/OAK75DVM25.md): Bell 47D1 · Soledad, CA · Accident · No injuries · Closed · Mar 30, 1975 · N8645G · Substantial damage
- [NTSB LAX75FUA04](https://openairdocs.org/ntsb/LAX75FUA04.md): Bell 47D-1 · Seal Beach, CA · Accident · No injuries · Closed · Jul 28, 1974 · N5226 · Substantial damage
- [NTSB OAK73DVG41](https://openairdocs.org/ntsb/OAK73DVG41.md): Bell 47D1 · Marysville, CA · Accident · No injuries · Closed · Jan 27, 1973 · N10190 · Destroyed
- [NTSB LAX72DVA60](https://openairdocs.org/ntsb/LAX72DVA60.md): Bell 47G · Wasco, CA · Accident · No injuries · Closed · Apr 2, 1972 · N153B · Destroyed
- [NTSB LAX71FUA47](https://openairdocs.org/ntsb/LAX71FUA47.md): Bell 47D1 · Long Beach, CA · Accident · No injuries · Closed · Feb 8, 1971 · N74124 · Substantial damage
- [NTSB LAX71FUQ33](https://openairdocs.org/ntsb/LAX71FUQ33.md): Bell 47G · Van Nuys, CA · Accident · No injuries · Closed · Oct 20, 1970 · N4702S · Substantial damage
- [NTSB LAX70FUD08](https://openairdocs.org/ntsb/LAX70FUD08.md): Bell 47D · Venice, CA · Accident · No injuries · Closed · Mar 18, 1970 · N234B · Substantial damage
- [NTSB LAX70F0171](https://openairdocs.org/ntsb/LAX70F0171.md): Bell 47D1 · Santa Ana, CA · Accident · No injuries · Closed · Oct 10, 1969 · N9673Z · Substantial damage
- [NTSB LAX70D0129](https://openairdocs.org/ntsb/LAX70D0129.md): Bell 47D1 · Shafter, CA · Accident · No injuries · Closed · Sep 13, 1969 · N153B · Substantial damage
- [NTSB LAX69F0027](https://openairdocs.org/ntsb/LAX69F0027.md): Bell 47D1 · Crona D Mar, CA · Accident · No injuries · Closed · Jun 21, 1968 · N12512 · Substantial damage
- [NTSB LAX68A0086](https://openairdocs.org/ntsb/LAX68A0086.md): Bell 47D1 · Carlsbad, CA · Accident · Minor injuries · Closed · Mar 9, 1968 · N5511V · Destroyed
- [NTSB OAK68A0045](https://openairdocs.org/ntsb/OAK68A0045.md): Bell 47D1 · Antioch, CA · Accident · Serious injuries · Closed · Nov 21, 1967 · N112B · Substantial damage
- [NTSB LAX68A0029](https://openairdocs.org/ntsb/LAX68A0029.md): Bell 47D1 · Long Beach, CA · Accident · No injuries · Closed · Sep 8, 1967 · N74119 · Substantial damage
- [NTSB LAX68A0021](https://openairdocs.org/ntsb/LAX68A0021.md): Bell 47D1 · Buttonwilow, CA · Accident · No injuries · Closed · Aug 18, 1967 · N10190 · Substantial damage
- [NTSB OAK67A0071](https://openairdocs.org/ntsb/OAK67A0071.md): Bell 47D1 · Martinez, CA · Accident · 3 fatal · Closed · Mar 25, 1967 · N74123 · Destroyed
- [NTSB LAX67A0043](https://openairdocs.org/ntsb/LAX67A0043.md): Bell 47D1 · Fontana, CA · Accident · No injuries · Closed · Oct 31, 1966 · N5166V · Substantial damage
- [NTSB LAX67A0031](https://openairdocs.org/ntsb/LAX67A0031.md): Bell 47D1 · Long Beach, CA · Accident · No injuries · Closed · Sep 11, 1966 · N74119 · Substantial damage
- [NTSB LAX67A0026](https://openairdocs.org/ntsb/LAX67A0026.md): Bell 47D1 · Quartz Hill, CA · Accident · Serious injuries · Closed · Sep 1, 1966 · N93067 · Substantial damage
- [NTSB OAK66A0022](https://openairdocs.org/ntsb/OAK66A0022.md): Bell 47D1 · Bells Station, CA · Accident · No injuries · Closed · Nov 10, 1965 · N68632 · Substantial damage
- [NTSB LAX65A0059](https://openairdocs.org/ntsb/LAX65A0059.md): Bell 47D1 · Granada Hls, CA · Accident · No injuries · Closed · Jan 9, 1965 · N234B · Substantial damage
- [NTSB UNK65X0548](https://openairdocs.org/ntsb/UNK65X0548.md): Bell 47D1 · San Frnando, CA · Accident · No injuries · Closed · Nov 3, 1964 · N68627 · Substantial damage
- [NTSB UNK64X2269](https://openairdocs.org/ntsb/UNK64X2269.md): Bell 47D1 · Colusa, CA · Accident · No injuries · Closed · Jun 13, 1964 · N5511V · Substantial damage
- [NTSB UNK64X1689](https://openairdocs.org/ntsb/UNK64X1689.md): Bell 47D-1 · Fullerton, CA · Accident · No injuries · Closed · May 9, 1964 · N9421H · Substantial damage
- [NTSB UNK64X1063](https://openairdocs.org/ntsb/UNK64X1063.md): Bell 47D1 · Hayward, CA · Accident · Minor injuries · Closed · Mar 27, 1964 · N201W · 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 ('1180802'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

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