ANC76AA019

NTSB accident investigation · Aerospatle SA341G · Birches, AK · August 5, 1975

Accident · Serious injuriesClosed
Date
August 5, 1975
Place
Birches, AK · BIRCHES, AK
Injuries
1 serious, 2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N62356Aerospatle SA341G
Status
Completed · report December 17, 1976
Report
Brief approved by the director
Case key
150385

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
----------------------------------------------------------------------------------------------------------------------------
3-4183   75/8/5  NR.BIRCHES,AK         AEROSPATLE SA341G   CR-  0  1  0  COMMERCIAL                COMMERCIAL, AGE 28, 3500
        TIME - 1122                    N62356              PX-  0  0  2  CTR PASSG-D               TOTAL HOURS, 600 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          ROCKY POINT,AK             BIRCHES,AK                    CX-2,AK
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      IN FLIGHT: OTHER
           COLLIDED WITH: TREES                                     LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: TAIL ROTOR GEAR BOX
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: POOR/INADEQUATE DESIGN
        FACTOR(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
           TERRAIN - HIGH OBSTRUCTIONS
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- BLM SURVEY FLT. 266HRS SINCE NEW.

Aircraft

Registration
N62356
Reported as
Aerospatle SA341G
Category
Helicopter
Engine
turbo shaft
Damage
Substantial damage

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.