# NTSB ANC67A0002: Bell 47J-2A, N8502F, Bornite, AK, June 18, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 18, 1966
- Place: Bornite, AK · BORNITE, AK
- Location: 67.0592° N, 156.9428° W: Placed by OpenAirDocs: center of Bornite, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=67.0592&lon=-156.9428&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report February 20, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 171683
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC67A0002
- Page: https://openairdocs.org/ntsb/ANC67A0002

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0537  66/6/18    BORNITE ALAS        BELL 47J-2A         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 42, 2500
        TIME - 1430                    N8502F              PX-  0  0  2  AERIAL SURVEY             TOTAL HOURS, 84 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - MOUNTAIN RIDGE
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER COMPENSATION FOR WIND CONDITIONS
           MISCELLANEOUS ACTS,CONDITIONS - POORLY PLANNED APPROACH
        FACTOR(S)
           WEATHER - DOWNDRAFT,UPDRAFTS
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        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                  RELATIVE BEARING OF WIND
          NONE                                                     RIGHT CROSS WIND 068-112 DEGREES
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          270                                                       25
        REMARKS- MINING SURVEY FLIGHT.
```

## Aircraft

- Registration: [N8502F](https://openairdocs.org/deregistered/N8502F-1975-06-10), registration cancelled 1975-06-10, S/N 3308 (OpenAirDocs)
- Reported make and model: BELL 47J-2A
- Registry model: [Bell 47J-2A](https://openairdocs.org/model/bell-47j-2a) (registry code 1181106) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Mountain Ridge

## Other investigations on N8502F (1)

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.

- [NTSB DEN72FTE61](https://openairdocs.org/ntsb/DEN72FTE61), Mar 2, 1972: Bell 47J-2 (N8502F), Glenwood Sps, CO, destroyed

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.

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