ANC67A0002

NTSB accident investigation · Bell 47J-2A · Bornite, AK · June 18, 1966

Accident · No injuriesClosed
Date
June 18, 1966
Place
Bornite, AK · BORNITE, AK
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8502FBell 47J-2A
Status
Completed · report February 20, 1967
Report
Brief approved by the director
Case key
171683

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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NTSB brief

NTSB’s brief of the accident, as it was printed: the coded facts, with the probable cause and factors.

----------------------------------------------------------------------------------------------------------------------------
 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
Reported as
Bell 47J-2A
Category
Helicopter
Engine
reciprocating
Damage
Substantial damage
Airport
Mountain Ridge

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Other investigations on N8502F · 1

Matched to the same aircraft by N-number and date.