# NTSB FTW72DPD18: Hiller UH12C, N73875, Grandview, TX, September 14, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 14, 1971
- Place: Grandview, TX · GRANDVIEW, TX
- Location: 32.2684° N, 97.1789° W: Placed by OpenAirDocs: center of Grandview, TX, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.2684&lon=-97.1789&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report April 11, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 163430
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW72DPD18
- Page: https://openairdocs.org/ntsb/FTW72DPD18

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3246  71/9/14    GRANDVIEW,TEX       HILLER UH12C        CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 31, 4262
        TIME - 1430                    N73875              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 845 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          GRANDVIEW,TEX               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: WIRES/POLES                               IN FLIGHT: SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED CLEARANCE
           TERRAIN - HIGH OBSTRUCTIONS
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 4262                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - COTTON                                    TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - SIDES                             TERRAIN-TYPE -ROLLING
          SWATH RUN-HOW FLOWN - UPWIND
        REMARKS- WIRE ENTANGLED MAIN ROTOR,CAUSED IT TO HIT AND SEVER TAIL BOOM.
```

## Aircraft

- Registration: [N73875](https://openairdocs.org/aircraft/N73875), registered now, S/N WH6002, built 1964 (OpenAirDocs)
- Reported make and model: HILLER UH12C
- Registry model: [Hiller - World Helicopters UH-12C](https://openairdocs.org/model/hiller-world-helicopters-uh-12c) (registry code 4360117) (OpenAirDocs)
- Registry engine: [Franklin 6V4 series](https://openairdocs.org/engine/franklin-6v4-series) (registry code 27033, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N73875 (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 NYC78FGT06](https://openairdocs.org/ntsb/NYC78FGT06), Apr 18, 1978: Hiller UH-12C (N73875), Lititz, PA, substantial damage
- [NTSB FTW72FPA07](https://openairdocs.org/ntsb/FTW72FPA07), Oct 7, 1971: Hiller UH-12C (N73875), Lorena, TX, 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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