# NTSB MIA74DLD11: Grumman G-164A, N4976, Zolfo Springs, FL, July 31, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 31, 1973
- Place: Zolfo Springs, FL · ZOLFO SPRINGS, FL
- Location: 27.4926° N, 81.7868° W: Placed by OpenAirDocs: center of Zolfo Springs, FL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=27.4926&lon=-81.7868&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 9, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 189021
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA74DLD11
- Page: https://openairdocs.org/ntsb/MIA74DLD11

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2781  73/7/31    ZOLFO SPRINGS,FLA   GRUMMAN G-164A      CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 0745                    N4976               PX-  0  0  0  AERIAL APPLICATION        AGE 40, 7050 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            93 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          AVON PARK,FLA               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: OBJECT                                    IN FLIGHT: SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OBJECTS OR OBSTRUCTIONS
           MISCELLANEOUS - EVASIVE MANEUVER TO AVOID COLLISION
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  250                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - FRUIT ORCHARDS                            TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - USED
          GOGGLES - USED                                           CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  30                                DENSE WITH TREES
          SWATH RUN-HOW FLOWN - WIND CALM
        REMARKS- STRUCK IRRIGATION SPRINKLER IN MANEUVER TO AVOID BUZZARD.
```

## Aircraft

- Registration: [N4976](https://openairdocs.org/deregistered/N4976-2006-05-18), registration cancelled 2006-05-18, S/N 1099, built 1973 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164A
- Registry model: [Grumman Acft ENG Cor-Schweizer G-164A](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164a) (registry code 3952801) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- 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 19730731028079A](https://openairdocs.org/incident/19730731028079A), Jul 31, 1973: Gulstm G164A, Zolfo Springs, FL, Substantial damage. Struck irrigation sprinkler in maneuver to avoid buzzard.

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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