# NTSB MIA74DLD84: Hiller Acft UH-12D, N936, Pleasant Grov, FL, April 24, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 24, 1974
- Place: Pleasant Grov, FL · PLEASANT GROV, FL
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 20, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 125926
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA74DLD84
- Page: https://openairdocs.org/ntsb/MIA74DLD84

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2090  74/4/24    PLEASANT GROV,FLA   HILLER ACFT UH-12D  CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 52, 6941
        TIME - 0945                    N936                PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 20 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          PLEASANT GROV,FLA           LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: TREES                                     IN FLIGHT: SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OBJECTS OR OBSTRUCTIONS
           PILOT IN COMMAND - DIVERTED ATTENTION FROM OPERATION OF AIRCRAFT
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -   19                       KIND OF OPERATION - OTHER
          KIND OF CROP - OTHER                                     TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          GLOVES - USED                                            GOGGLES - NOT USED
          CRASH HELMET - AVAILABLE USED                            COCKPIT CRASHPAD - NOT INSTALLED
          CRASH BAR - NOT INSTALLED                                TANK/HOPPER-LOCATION - SIDES
          TERRAIN-TYPE -SWAMPY/WATER                               ELEVATION-AREA BEING TREATED-FEET -  80
          SWATH RUN-HOW FLOWN - UPWIND
        REMARKS- WATCHING SPRAY BOOM.KILLING WATER WEEDS.
```

## Aircraft

- Registration: [N936](https://openairdocs.org/deregistered/N936-2012-11-20), registration cancelled 2012-11-20, S/N 1002, built 1957 (OpenAirDocs)
- Reported make and model: HILLER ACFT UH-12D
- Registry model: [Hiller UH-12D](https://openairdocs.org/model/hiller-uh-12d) (registry code 4360118) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## 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 19740424011299A](https://openairdocs.org/incident/19740424011299A), Apr 24, 1974: Hiller UH12D, Pleasant Grov, FL, Substantial damage. Watching spray boom. Killing water weeds.

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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