# NTSB OAK79DVA11: Hiller UH-12E, N64741, Ivanhoe, CA, December 8, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 8, 1978
- Place: Ivanhoe, CA · IVANHOE, CA
- Location: 36.3834° N, 119.2201° W: Placed by OpenAirDocs: center of Ivanhoe, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.3834&lon=-119.2201&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report January 2, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 139168
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK79DVA11
- Page: https://openairdocs.org/ntsb/OAK79DVA11

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3264   78/12/8 NR.IVANHOE,CA         HILLER UH-12E       CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 31, 858
        TIME - 0400                    N64741              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 81 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         IVANHOE,CA                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: WIRES/POLES                               IN FLIGHT: SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OBJECTS OR OBSTRUCTIONS
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - ANTI-FROST OPERATIONS
          KIND OF CROP - FRUIT ORCHARDS                            TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  350                               DENSE WITH TREES
          SWATH RUN-HOW FLOWN - WIND CALM
        REMARKS- HIT POWERLINE WHILE INVOLVED IN FROST CONTROL.
```

## Aircraft

- Registration: [N64741](https://openairdocs.org/aircraft/N64741), registered now, S/N 2189, built 1976 (OpenAirDocs)
- Reported make and model: HILLER UH-12E
- Registry model: [Hiller UH-12E4](https://openairdocs.org/model/hiller-uh-12e4) (registry code 4360127) (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 19781208036509A](https://openairdocs.org/incident/19781208036509A), Dec 8, 1978: Amtr 34601, Ivanhoe, CA, Substantial damage. Hit powerline while involved in frost control.

## Other investigations on N64741 (1)

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.

- [NTSB ERA22LA118](https://openairdocs.org/ntsb/ERA22LA118), Feb 9, 2022: Hiller UH-12E4 (N64741), Shrewsbury, PA, substantial damage. Probable cause: The pilot’s failure to maintain control during the descent which resulted in a hard landing.

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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