# NTSB OAK71DVM12: Hiller Acft UH-12C, N5330V, Castroville, CA, August 28, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 28, 1970
- Place: Castroville, CA · CASTROVILLE, CA
- Location: 36.7648° N, 121.7534° W: Placed by OpenAirDocs: center of Castroville, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.7648&lon=-121.7534&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 6, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 107898
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK71DVM12
- Page: https://openairdocs.org/ntsb/OAK71DVM12

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4523  70/8/28    CASTROVILLE,CALIF   HILLER ACFT UH-12C  CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1030                    N5330V              PX-  0  0  0  AERIAL APPLICATION        AGE 28, 5012 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            950 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          CASTROVILLE,CALIF           LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: OBJECT                                    IN FLIGHT: SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - EXERCISED POOR JUDGMENT
           PILOT IN COMMAND - MISJUDGED CLEARANCE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 5000                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - OTHER                                     TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - BELLY                             TERRAIN-TYPE -LEVEL,FLAT
          SWATH RUN-HOW FLOWN - WIND CALM
        REMARKS- SWATH RUN 3FT AGL AT 40K AIRSPEED.RETREATING BLADE HIT STANDPIPE.HIT GND OUT OF CTL SLID APRX 60FT
```

## Aircraft

- Registration: [N5330V](https://openairdocs.org/aircraft/N5330V), registered now, S/N 1042, built 1959 (OpenAirDocs)
- Reported make and model: HILLER ACFT UH-12C
- Registry model: [Hiller UH-12C](https://openairdocs.org/model/hiller-uh-12c) (registry code 4360116) (OpenAirDocs)
- Registry engine: [Franklin 6A&6V335 series](https://openairdocs.org/engine/franklin-6a-6v335-series) (registry code 27020, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N5330V (3)

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 SEA77FYE24](https://openairdocs.org/ntsb/SEA77FYE24), Jun 17, 1977: Hiller Acft 12C (N5330V), Mt Vernon, WA, destroyed
- [NTSB OAK74FVD14](https://openairdocs.org/ntsb/OAK74FVD14), Sep 14, 1973: Hiller Acft UH-12C (N5330V), Brentwood, CA, substantial damage
- [NTSB ANC69A0052](https://openairdocs.org/ntsb/ANC69A0052), May 5, 1969: Hiller UH-12C (N5330V), Livengood, AK, 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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