# NTSB OAK74FVD14: Hiller Acft UH-12C, N5330V, Brentwood, CA, September 14, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 14, 1973
- Place: Brentwood, CA · BRENTWOOD, CA
- Location: 37.9356° N, 121.7190° W: Placed by OpenAirDocs: center of Brentwood, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.9356&lon=-121.7190&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 2, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 188580
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK74FVD14
- Page: https://openairdocs.org/ntsb/OAK74FVD14

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2833  73/9/14    BRENTWOOD,CALIF     HILLER ACFT UH-12C  CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 28, 1852
        TIME - 0930                    N5330V              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 900 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          BRENTWOOD,CALIF             LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: SWATH RUN
           COLLISION WITH GROUND/WATER: CONTROLLED                  LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - PILOT FATIGUE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  450                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - LETTUCE                                   TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - BELLY                             TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  3                   SWATH RUN-HOW FLOWN - WIND CALM
        REMARKS- ENG FAIL TOO LOW TO AFFECT RECOVERY.
```

## 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

## 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 19730914030259A](https://openairdocs.org/incident/19730914030259A), Sep 14, 1973: Hiller UH12C, Brentwood, CA, Substantial damage. Eng fail too low to affect recovery.

## 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 OAK71DVM12](https://openairdocs.org/ntsb/OAK71DVM12), Aug 28, 1970: Hiller Acft UH-12C (N5330V), Castroville, 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.