# NTSB UNK64X2345: Hiller UH12B, N4778C, Copley Tnshp, OH, June 17, 1964

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: June 17, 1964
- Place: Copley Tnshp, OH · COPLEY TNSHP, OH
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report August 27, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 183594
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X2345
- Page: https://openairdocs.org/ntsb/UNK64X2345

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0393  64/6/17    COPLEY TNSHP OHIO   HILLER UH12B        CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 45, 11500
        TIME - 1450                    N4778C              PX-  0  0  1  AIR TAXI-PASSG            TOTAL HOURS, 31 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
           MISCELLANEOUS ACTS,CONDITIONS - DOWNWIND
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         FIRE AFTER IMPACT
```

## Aircraft

- Registration: [N4778C](https://openairdocs.org/deregistered/N4778C-1964-07-02), registration cancelled 1964-07-02, S/N 641 (OpenAirDocs)
- Reported make and model: HILLER UH12B
- Registry model: [Hiller UH-12B](https://openairdocs.org/model/hiller-uh-12b) (registry code 4360110) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed

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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