# NTSB UNK64X2956: Grumman G164, N723Y, Clewiston, FL, July 21, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 21, 1964
- Place: Clewiston, FL · CLEWISTON, FL
- Location: 26.7528° N, 80.9392° W: Placed by OpenAirDocs: center of Clewiston, FL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=26.7528&lon=-80.9392&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 15, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 182757
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X2956
- Page: https://openairdocs.org/ntsb/UNK64X2956

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2155  64/7/21    CLEWISTON FLA       GRUMMAN G164        CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 25, 3800
        TIME - 0630                    N723Y               PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 50 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAKEOFF: ABORTED
           NOSE OVER/DOWN                                           TAKEOFF: ABORTED
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
           PILOT IN COMMAND - DELAYED ACTION IN ABORTING TAKEOFF
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 2000                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - UNKNOWN/NOT REPORTED                      TYPE OF CHEMICAL USED - UNKNOWN/NOT REPORTED
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  14
```

## Aircraft

- Registration: [N723Y](https://openairdocs.org/deregistered/N723Y-1989-09-18), registration cancelled 1989-09-18, S/N 285 (OpenAirDocs)
- Reported make and model: GRUMMAN G164
- Registry model: [Grumman G-164](https://openairdocs.org/model/grumman-g-164) (registry code 3952702) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N723Y (1)

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 CHI78FEV51](https://openairdocs.org/ntsb/CHI78FEV51), Aug 24, 1978: Grumman G-164 (N723Y), Greenfield, IL, 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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