# NTSB SEA69D0043: Hiller UH-12E, N4414, Rockford, ID, July 27, 1968

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 27, 1968
- Place: Rockford, ID · ROCKFORD, ID
- Location: 43.1892° N, 112.5306° W: Placed by OpenAirDocs: center of Rockford, ID, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.1892&lon=-112.5306&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report December 17, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 108577
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA69D0043
- Page: https://openairdocs.org/ntsb/SEA69D0043

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3608  68/7/27    ROCKFORD,ID         HILLER UH-12E       CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 29, 1100
        TIME - 1215                    N4414               PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 100 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: MUSH                                              IN FLIGHT: PROCEDURE TURNAROUND
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
           WEATHER - HIGH TEMPERATURE
           WEATHER - HIGH DENSITY ALTITUDE
        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                                                      93
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -   33                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - POTATOES                                  TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - USED
          CRASH HELMET - AVAILABLE-NOT USED                        COCKPIT CRASHPAD - NOT INSTALLED
          CRASH BAR - NOT INSTALLED                                TANK/HOPPER-LOCATION - SIDES
          TERRAIN-TYPE -LEVEL,FLAT                                 ELEVATION-AREA BEING TREATED-FEET -  4600
          SWATH RUN-HOW FLOWN - WIND CALM                          PROCEDURE TURNAROUND - THIRD 1/3 TURN
        REMARKS- HELICOPTER SETTLED UNCONTROLLABLY.TEMP 93 DEG.DENS ALT 7600 FT.WIND CALM.
```

## Aircraft

- Registration: [N4414](https://openairdocs.org/deregistered/N4414-2014-12-17), registration cancelled 2014-12-17, S/N 2205, built 1962 (OpenAirDocs)
- Reported make and model: HILLER UH-12E
- Registry model: [Hiller UH-12E](https://openairdocs.org/model/hiller-uh-12e) (registry code 4360122) (OpenAirDocs)
- Registry engine: [Lycoming VO-540 series](https://openairdocs.org/engine/lycoming-vo-540-series) (registry code 41534, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N4414 (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 LAX91LA191](https://openairdocs.org/ntsb/LAX91LA191), May 4, 1991: Hiller UH-12E (N4414), Delano, CA, substantial damage. Probable cause: THAT THE PILOT IMPROPERLY PERFORMED THE AUTOROTATION BY MISJUDGING THE FLARE ALTITUDE. CONTRIBUTING TO THIS ACCIDENT WAS THE TOTAL FAILURE OF THE FREEWHEELING SPRAG CLUTCH DUE TO EXCESSIVE WEAR AND…
- [NTSB LAX80FVA03](https://openairdocs.org/ntsb/LAX80FVA03-201195), Oct 17, 1979: Hiller UH-12E (N4414), Mendota, 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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