# NTSB ANC66A0050: Hiller UH12E, N5337V, King Salmon, AK, June 24, 1966

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: June 24, 1966
- 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: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report March 13, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 171131
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC66A0050
- Page: https://openairdocs.org/ntsb/ANC66A0050

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0607  66/6/24  NR.KING SALMON ALAS   HILLER UH12E        CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 2115                    N5337V              PX-  0  0  0  CTR CARGO-D               AGE 40, 15000 TOTAL
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            HOURS, 1000 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           TURBULENCE                                               IN FLIGHT: NORMAL CRUISE
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           WEATHER - TURBULENCE IN FLIGHT,CLEAR AIR
           PILOT IN COMMAND - IMPROPER LEVEL OFF
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING OFF AIRPORT
                                  PITCH CONTROL PROBLEM
                                  SUSPECTED MECHANICAL DISCREPANCY
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      52
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
           80                                                       10
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- PILOT ENCOUNTERED TURBULENCE SUSPECTED CONTROL MALFUNCTION EXECUTED AUTOROTATION LANDING ON TUNDRA
```

## Aircraft

- Registration: N5337V (not matched to a registry record)
- Reported make and model: HILLER UH12E
- 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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