# NTSB SEA75DYA07: Hiller Acft UH-12E, N534S, Bliss, ID, July 31, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 31, 1974
- Place: Bliss, ID · BLISS, ID
- Location: 42.9243° N, 114.9475° W: Placed by OpenAirDocs: center of Bliss, ID, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.9243&lon=-114.9475&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 24, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 136748
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA75DYA07
- Page: https://openairdocs.org/ntsb/SEA75DYA07

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2841  74/7/31  NR.BLISS,ID           HILLER ACFT UH-12E  CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 28, 1663
        TIME - 1300                    N534S               PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 85 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         BLISS,ID                     LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: UNCONTROLLED                TAKEOFF: OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        FACTOR(S)
           WEATHER - HIGH DENSITY ALTITUDE
        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                                                      85
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
           45                                                       5
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -   88                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - POTATOES                                  TYPE OF CHEMICAL USED - DRY CHEMICAL-TOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - USED
          GOGGLES - USED                                           CRASH HELMET - AVAILABLE USED
          CRASH BAR - NOT INSTALLED                                TANK/HOPPER-LOCATION - AFT OF PILOT
          TERRAIN-TYPE -HILLY                                      ELEVATION-AREA BEING TREATED-FEET -  3000
         FIRE AFTER IMPACT
        REMARKS- HEAVY LOAD.DA 5200FT.PLT ALLOWED RPM TO DROOP EACH TKOF TIL REACHING TRANS LIFT.9TH LOAD,LOST CTL.
```

## Aircraft

- Registration: N534S (not matched to a registry record)
- Reported make and model: HILLER ACFT UH-12E
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed

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.