# NTSB ANC72AA007: Bell 47-J2A, N8543F, King Salmon, AK, July 31, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 31, 1971
- Place: King Salmon, AK · KING SALMON, AK
- Location: 58.6883° N, 156.6614° W: Placed by OpenAirDocs: center of King Salmon, AK, within about 7 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=58.6883&lon=-156.6614&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report March 13, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 162380
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC72AA007
- Page: https://openairdocs.org/ntsb/ANC72AA007

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2717  71/7/31    KING SALMON,ALAS    BELL 47-J2A         CR-  0  0  1  COMMERCIAL                AIRLINE TRANSPORT, AGE
        TIME - 1100                    N8543F              PX-  0  0  2  AIR TAXI-PASSG            32, 3831 TOTAL HOURS, 659
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - KING SALMON
        DEPARTURE POINT             INTENDED DESTINATION
          KING SALMON,ALAS            LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            LANDING: LEVEL OFF/TOUCHDOWN
           COLLISION WITH GROUND/WATER: UNCONTROLLED                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           ROTORCRAFT - FLIGHT CONTROL SYSTEMS: CYCLIC PITCH CONTROL SYSTEM
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        REMARKS- PLT FELT VIBRTN ON LEVEL OFF,CYCLIC CTL BRACKET FAILED,ACFT HIT IN TAIL LOW ATTITUDE.
```

## Aircraft

- Registration: N8543F (not matched to a registry record)
- Reported make and model: BELL 47-J2A
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: King Salmon

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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