# NTSB FTW81DPD17: Grumman G-164A, N6604, Granbury, TX, April 1, 1981

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: April 1, 1981
- Place: Granbury, TX · GRANBURY, TX
- Location: 32.4484° N, 97.7701° W: Placed by OpenAirDocs: center of Granbury, TX, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.4484&lon=-97.7701&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report June 25, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 127104
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW81DPD17
- Page: https://openairdocs.org/ntsb/FTW81DPD17

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0987   81/4/1  NR.GRANBURY,TX        GRUMMAN G-164A      CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 27, 560
        TIME - 0820                    N6604               PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 150 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         GRANBURY,TX                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: TREES                                     IN FLIGHT: PULLUP FROM SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED CLEARANCE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  200                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - FRUIT ORCHARDS                            TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -ROLLING
          ELEVATION-AREA BEING TREATED-FEET -  710                               DENSE WITH TREES
          SWATH RUN-HOW FLOWN - WIND CALM                          PROCEDURE TURNAROUND - ENTRY TO PROCEDURE TURN
        REMARKS- SPRAYING LINDANE ON PECAN TREES.
```

## Aircraft

- Registration: [N6604](https://openairdocs.org/deregistered/N6604-2013-04-30), registration cancelled 2013-04-30, S/N 742, built 1970 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164A
- Registry model: [Grumman G-164A](https://openairdocs.org/model/grumman-g-164a) (registry code 3952704) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, 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 19810401013569A](https://openairdocs.org/incident/19810401013569A), Apr 1, 1981: Grumav G164A, Granbury, TX, Substantial damage. Wing struck a tree on pull-up over a bluff from a swath run. Misjudged performance with chemical load.

## Other investigations on N6604 (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 IAD79FLT03](https://openairdocs.org/ntsb/IAD79FLT03), Apr 10, 1979: Grumman G-164 (N6604), Newbern, TN, substantial damage
- [NTSB FTW74FRJ38](https://openairdocs.org/ntsb/FTW74FRJ38), Jun 19, 1974: Grumman G-164A (N6604), Mer Rouge, LA, 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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