# NTSB DEN73DTM31: Hiller Acft UH-12E, N5332V, Richfield, UT, June 17, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 17, 1973
- Place: Richfield, UT · RICHFIELD, UT
- Location: 38.7612° N, 112.0929° W: Placed by OpenAirDocs: center of Richfield, UT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.7612&lon=-112.0929&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report February 12, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 189896
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN73DTM31
- Page: https://openairdocs.org/ntsb/DEN73DTM31

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3842  73/6/17  NR.RICHFIELD,UT       HILLER ACFT UH-12E  CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 27, 3959
        TIME - 0715                    N5332V              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 592 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         RICHFIELD,UT                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: EN ROUTE TO TREAT CROP
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        FACTOR(S)
           INSTRUMENTS/EQUIPMENT AND ACCESSORIES - MISCELLANEOUS EQUIPMENT: SPRAY,DUSTING EQUIPMENT
           MISCELLANEOUS ACTS,CONDITIONS - LOAD NOT JETTISONED
           WEATHER - HIGH DENSITY ALTITUDE
           TERRAIN - ROUGH/UNEVEN
           MISCELLANEOUS ACTS,CONDITIONS - LATERAL IMBALANCE
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      58
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          225                                                       7
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - SPRAYING FORESTS
          KIND OF CROP - FOREST-TREES                              TYPE OF CHEMICAL USED - UNKNOWN/NOT REPORTED
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 TANK/HOPPER-LOCATION - SIDES
          TERRAIN-TYPE -MOUNTAINOUS                                ELEVATION-AREA BEING TREATED-FEET -  7800
        REMARKS- ONLY ONE TANK DUMPED,UNDET REASON.DENSITY ALT 9500FT.
```

## Aircraft

- Registration: [N5332V](https://openairdocs.org/deregistered/N5332V-1981-10-13), registration cancelled 1981-10-13, S/N 2004 (OpenAirDocs)
- Reported make and model: HILLER ACFT UH-12E
- Registry model: [Hiller UH-12E](https://openairdocs.org/model/hiller-uh-12e) (registry code 4360122) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed

## 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 19730617041469A](https://openairdocs.org/incident/19730617041469A), Jun 17, 1973: Hiller UH12C, Richfield, UT, Destroyed. Only one tank dumped,undet reason. Density alt 9500FT.

## Other investigations on N5332V (2)

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 SEA74DYC49](https://openairdocs.org/ntsb/SEA74DYC49), May 1, 1974: Hiller Acft UH-12E (N5332V), Independence, OR, substantial damage
- [NTSB LAX65A0094](https://openairdocs.org/ntsb/LAX65A0094), Jun 10, 1965: Hiller UH-12E (N5332V), Altadena, CA, 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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