# NTSB OAK79FVG29: Hiller UH-12, N28874, Weaverville, CA, April 10, 1979

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: April 10, 1979
- Place: Weaverville, CA · WEAVERVILLE, CA
- Location: 40.7407° N, 122.9290° W: Placed by OpenAirDocs: center of Weaverville, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.7407&lon=-122.9290&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 1 uninjured
- Status: Completed, report June 8, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 137005
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK79FVG29
- Page: https://openairdocs.org/ntsb/OAK79FVG29

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0843  79/4/10    WEAVERVILLE,CA      HILLER UH-12        CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 39, 3410
        TIME - 0645                    N28874              PX-  0  0  1  NS CTR PASSG              TOTAL HOURS, 1107 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          WEAVERVILLE,CA              LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: TREES                                     LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           MISCELLANEOUS ACTS,CONDITIONS - FUEL CONTAMINATION-EXCLUSIVE OF WATER IN FUEL
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
```

## Aircraft

- Registration: [N28874](https://openairdocs.org/deregistered/N28874-2013-07-18), registration cancelled 2013-07-18, S/N 2142, built 1961 (OpenAirDocs)
- Reported make and model: HILLER UH-12
- Registry model: [Hiller UH-12E](https://openairdocs.org/model/hiller-uh-12e) (registry code 4360122) (OpenAirDocs)
- Registry engine: [Lycoming VO-540 series](https://openairdocs.org/engine/lycoming-vo-540-series) (registry code 41534, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19790410008789A](https://openairdocs.org/incident/19790410008789A), Apr 10, 1979: Hiller UH12E, Weaverville, CA, Substantial damage. Forced landing due to engine failure. The pilot said water found in fuel and in company owned fuel tanker.

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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