# NTSB ANC76AA019: Aerospatle SA341G, N62356, Birches, AK, August 5, 1975

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: August 5, 1975
- Place: Birches, AK · BIRCHES, AK
- Location: 65.1350° N, 153.5567° W: Placed by OpenAirDocs: center of Birches, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=65.1350&lon=-153.5567&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 2 uninjured
- Status: Completed, report December 17, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 150385
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC76AA019
- Page: https://openairdocs.org/ntsb/ANC76AA019

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 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](https://openairdocs.org/deregistered/N62356-2013-02-11), registration cancelled 2013-02-11, S/N 1169, built 1974 (OpenAirDocs)
- Reported make and model: AEROSPATLE SA341G
- Registry model: [Aerospatiale SA341G GAZELLE](https://openairdocs.org/model/aerospatiale-sa341g-gazelle) (registry code 8680610) (OpenAirDocs)
- Registry engine: [Turbomeca ASTAZOU IIA](https://openairdocs.org/engine/turbomeca-astazou-iia) (registry code 60006, turbo-shaft) (OpenAirDocs)
- Category: Helicopter
- Engines: turbo shaft
- Damage: Substantial damage

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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