SEA66A0012

NTSB accident investigation · Bell 47G3B1 · Libby, MT · August 16, 1965

Accident · No injuriesClosed
Date
August 16, 1965
Place
Libby, MT · LIBBY, MT
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N73920Bell 47G3B1
Status
Completed · report November 15, 1965
Report
Brief approved by the director
Case key
177254

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
----------------------------------------------------------------------------------------------------------------------------
2-0590  65/8/16    LIBBY MONT          BELL 47G3B1         CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 35, 3950
        TIME - 1930                    N73920              PX-  0  0  2  TEST                      TOTAL HOURS, 2172 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - LIBBY AIRPORT
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: POWER-ON DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER COMPENSATION FOR WIND CONDITIONS
           PILOT IN COMMAND - EXERCISED POOR JUDGMENT
        FACTOR(S)
           WEATHER - DOWNDRAFT,UPDRAFTS
        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                                                     TAIL WIND 158-202 DEGREES
        TEMPERATURE-F                                            WIND DIRECTION-DEGREES
           80                                                      225
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           8                                                       VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- PASSENGERS WERE SMALL CHILDREN.

Aircraft

Registration
N73920
Reported as
Bell 47G3B1
Category
Helicopter
Engine
reciprocating
Damage
Substantial damage
Airport
Libby Airport

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.