FTW67A0017

NTSB accident investigation · Bell 47D1 · Stuttgart, AR · July 25, 1966

Accident · Serious injuriesClosed
Date
July 25, 1966
Place
Stuttgart, AR · STUTTGART, AR
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N3655FBell 47D1
Status
Completed · report March 31, 1967
Report
Brief approved by the director
Case key
122432

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
----------------------------------------------------------------------------------------------------------------------------
2-0685  66/7/25    STUTTGART ARK       BELL 47D1           CR-  0  1  0  COMMERCIAL                COMMERCIAL, AGE 29, 4076
        TIME - 0515                    N3655F              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 76 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      IN FLIGHT: SWATH RUN
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
          ROTORCFT-TAIL ROTOR QUILL SHAFT BEARING,PN 9505K.
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  DIRECTIONAL CONTROL PROBLEM
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - RICE                                      TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GOGGLES - NOT USED
          CRASH HELMET - AVAILABLE USED                            COCKPIT CRASHPAD - NOT INSTALLED
          CRASH BAR - NOT INSTALLED                                TANK/HOPPER-LOCATION - SIDES
          TERRAIN-TYPE -SWAMPY/WATER                               ELEVATION-AREA BEING TREATED-FEET -  224
          SWATH RUN-HOW FLOWN - WIND CALM
        REMARKS- T/R DRIVE SHAFT DECOUPLED FROM TRANSMISSION.

Aircraft

Registration
N3655F
Reported as
Bell 47D1
Category
Helicopter
Engine
reciprocating
Damage
Substantial damage