MKC76AK012

NTSB accident investigation · Bell 47G-5 · Keystone, SD · August 5, 1975

Accident · FatalClosed
Date
August 5, 1975
Place
Keystone, SD · KEYSTONE, SD
Injuries
3 fatal
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N4753RBell 47G-5
Status
Completed · report September 30, 1975
Report
Brief approved by the director
FAA report
19750805028259A
Case key
150043

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

On this page

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
----------------------------------------------------------------------------------------------------------------------------
3-2620   75/8/5    KEYSTONE,SD         BELL 47G-5          CR-  1  0  0  COMMERCIAL                COMMERCIAL, AGE 24, 1511
        TIME - 1830                    N4753R              PX-  2  0  0  OTHER                     TOTAL HOURS, 262 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - KEYSTONE HELIPORT
        DEPARTURE POINT             INTENDED DESTINATION
          KEYSTONE,SD                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: TREES                                     LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PILOT IN COMMAND - MISMANAGEMENT OF FUEL
           MISCELLANEOUS ACTS,CONDITIONS - FUEL EXHAUSTION
           TERRAIN - HIGH OBSTRUCTIONS
        FACTOR(S)
           PERSONNEL - OPERATIONAL SUPERVISORY PERSONNEL: DEFICIENCY,COMPANY MAINTAINED EQPMT,SERVICES,REGULATION
           MISCELLANEOUS ACTS,CONDITIONS - PILOT FATIGUE
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- SIGHTSEEING.

Aircraft

Registration
N4753R
Reported as
Bell 47G-5
Category
Helicopter
Engine
reciprocating
Damage
Substantial damage
Airport
Keystone Heliport

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.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.