# NTSB ANC70A0044: Bell 47J-2, N8506F, Cape Beaufrt, AK, November 21, 1969

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: November 21, 1969
- Place: Cape Beaufrt, AK · CAPE BEAUFRT, AK
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report February 25, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 148444
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC70A0044
- Page: https://openairdocs.org/ntsb/ANC70A0044

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3155  69/11/21 NR.CAPE BEAUFRT,ALAS  BELL 47J-2          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 24, 3320
        TIME - 1345                    N8506F              PX-  0  0  0  AIR TAXI-PASSG            TOTAL HOURS, 46 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         CAPE BEAUFRT,ALAS           CAPE BEAUFRT,ALAS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      IN FLIGHT: NORMAL CRUISE
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           AIRFRAME - FUSELAGE: FAIRINGS
           MISCELLANEOUS ACTS,CONDITIONS - SHEARED
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  DIRECTIONAL CONTROL PROBLEM
        REMARKS- COUPLING UNIT SPLINES IN T/R DRIVE FAILED.
```

## Aircraft

- Registration: N8506F (not matched to a registry record)
- Reported make and model: BELL 47J-2
- Category: Helicopter
- Engines: reciprocating
- 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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