# NTSB OAK70DVD15: Bell 47J, N6759D, Concord, CA, April 8, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 8, 1970
- Place: Concord, CA · CONCORD, CA
- Location: 37.9722° N, 122.0016° W: Placed by OpenAirDocs: center of Concord, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.9722&lon=-122.0016&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report August 9, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 135130
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK70DVD15
- Page: https://openairdocs.org/ntsb/OAK70DVD15

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0659   70/4/8    CONCORD,CALIF       BELL 47J            CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 34, 1200
        TIME - 1500                    N6759D              PX-  0  0  2  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 27 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          BUCHANAN FIELD              CONCORD,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            LANDING: FINAL APPROACH
           HARD LANDING                                             IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        FACTOR(S)
           WEATHER - UNFAVORABLE WIND CONDITIONS
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  WIND DIRECTION-DEGREES
          NONE                                                     315
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           10                                                      VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- SETTLED WITH POWER.
```

## Aircraft

- Registration: [N6759D](https://openairdocs.org/deregistered/N6759D-1991-01-25), registration cancelled 1991-01-25, S/N 1781 (OpenAirDocs)
- Reported make and model: BELL 47J
- Registry model: [Bell 47J](https://openairdocs.org/model/bell-47j) (registry code 1181102) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

---
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.