# NTSB UNK64X2713: Grumman G164, N472Y, Port Lavaca, TX, July 8, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 8, 1964
- Place: Port Lavaca, TX · PORT LAVACA, TX
- Location: 28.6180° N, 96.6283° W: Placed by OpenAirDocs: center of Port Lavaca, TX, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=28.6180&lon=-96.6283&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 14, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 182985
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X2713
- Page: https://openairdocs.org/ntsb/UNK64X2713

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1988   64/7/8    PORT LAVACA TEX     GRUMMAN G164        CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 44, 6000
        TIME - 0700                    N472Y               PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 800 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - CORNETT
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR COLLAPSED                                           TAKEOFF: RUN
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: MAIN GEAR-SHOCK ABSORBING ASSY,STRUTS,ATTACHMENTS,ETC.
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           MISCELLANEOUS ACTS,CONDITIONS - PREVIOUS DAMAGE
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE INSPECTION OF AIRCRAFT (OWNER-PILOT)
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 2500                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - COTTON                                    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 - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  ELEVATION-AREA BEING TREATED-FEET -  30
        REMARKS- GEAR SPRING LEG FAILED AT AXLE ATTACH BOLT HOLES
```

## Aircraft

- Registration: [N472Y](https://openairdocs.org/deregistered/N472Y-2020-01-06), registration cancelled 2020-01-06, S/N 117, built 1962 (OpenAirDocs)
- Reported make and model: GRUMMAN G164
- Registry model: [Grumman G-164](https://openairdocs.org/model/grumman-g-164) (registry code 3952702) (OpenAirDocs)
- Registry engine: [Continental W670 series](https://openairdocs.org/engine/continental-w670-series) (registry code 17018, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Cornett

## Other investigations on N472Y (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 FTW80DPA04](https://openairdocs.org/ntsb/FTW80DPA04), Dec 8, 1979: Grumman G-164 (N472Y), Lott, TX, substantial damage
- [NTSB FTW77DRG48](https://openairdocs.org/ntsb/FTW77DRG48), Apr 25, 1977: Grumman G-164 (N472Y), Port Lavaca, 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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