# NTSB SEA72DYA35: Hiller Acft UH-12E, N90465, Dubois, ID, May 17, 1972

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 17, 1972
- Place: Dubois, ID · DUBOIS, ID
- Location: 44.1712° N, 112.2283° W: Placed by OpenAirDocs: center of Dubois, ID, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.1712&lon=-112.2283&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report February 12, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 166530
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA72DYA35
- Page: https://openairdocs.org/ntsb/SEA72DYA35

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1708  72/5/17  NR.DUBOIS,ID          HILLER ACFT UH-12E  CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1857                    N90465              PX-  0  0  0  AERIAL APPLICATION        AGE 33, 2047 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            1025 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         DUBOIS,ID                    LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: TREES                                     IN FLIGHT: PROCEDURE TURNAROUND
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
        FACTOR(S)
           WEATHER - HIGH DENSITY ALTITUDE
           TERRAIN - HIGH OBSTRUCTIONS
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        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                                                      59
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          200                                                       10
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  135                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - SAGE                                      TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          CRASH BAR - NOT INSTALLED                                TANK/HOPPER-LOCATION - AFT OF PILOT
          ELEVATION-AREA BEING TREATED-FEET -  6400                SWATH RUN-HOW FLOWN - CROSSWIND
          PROCEDURE TURNAROUND - ENTRY TO PROCEDURE TURN
        REMARKS- UN MAINTAIN FLT DUE HEAVY LOAD,DENSITY ALT OF 7800 FT AND RISING TERRAIN. SETTLED INTO TREES.
```

## Aircraft

- Registration: [N90465](https://openairdocs.org/deregistered/N90465-1989-03-15), registration cancelled 1989-03-15, S/N 2352 (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: Substantial damage

## Other investigations on N90465 (4)

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 LAX77FA039](https://openairdocs.org/ntsb/LAX77FA039), Apr 10, 1977: Hiller UH-12E (N90465), Thermal, CA, destroyed, 1 fatal
- [NTSB SEA74DYA24](https://openairdocs.org/ntsb/SEA74DYA24-201590), Feb 5, 1974: Hiller Acft UH-12E (N90465), Soda Springs, ID, substantial damage
- [NTSB SEA70FWG02](https://openairdocs.org/ntsb/SEA70FWG02), Feb 23, 1970: Hiller Acft UH-12E (N90465), Colfax, WA, substantial damage
- [NTSB SEA68A0028](https://openairdocs.org/ntsb/SEA68A0028), Sep 27, 1967: Hiller UH-12E (N90465), Priest River, ID, 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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