# NTSB LAX81DVG26: Grumman G-164, N9768, Liberty Island, CA, April 13, 1981

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 13, 1981
- Place: Liberty Island, CA · LIBERTY ISLAND, CA
- Location: 38.2869° N, 121.6786° W: Placed by OpenAirDocs: center of Liberty Island, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.2869&lon=-121.6786&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report May 19, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 126157
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX81DVG26
- Page: https://openairdocs.org/ntsb/LAX81DVG26

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0621  81/4/13    LIBERTY ISLAND,CA   GRUMMAN G-164       CR-  0  0  1  COMMERCIAL                AIRLINE TRANSPORT, AGE
        TIME - 0815                    N9768               PX-  0  0  0  AERIAL APPLICATION        38, 7000 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            2500 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - AG STRIP DELHI RD
        DEPARTURE POINT             INTENDED DESTINATION
          LIBERTY ISLAND,CA           LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAKEOFF: INITIAL CLIMB
           GEAR COLLAPSED                                           TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
           PILOT IN COMMAND - FAILED TO ABORT TAKEOFF
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
           MISCELLANEOUS ACTS,CONDITIONS - JETTISONED LOAD
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - AFT OF PILOT                      ELEVATION-AREA BEING TREATED-FEET -  40
          SWATH RUN-HOW FLOWN - UNKNOWN/NOT REPORTED
```

## Aircraft

- Registration: [N9768](https://openairdocs.org/aircraft/N9768), registered now, S/N 1254, built 1974 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164
- 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
- Airport: Ag Strip Delhi Rd

## 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 19810413016689A](https://openairdocs.org/incident/19810413016689A), Apr 13, 1981: Grumav G164A, Dixon, CA, Substantial damage. Veered to edge of runway on takeoff. Mainwheel hit soft edge, wing hit wheat. Collapsed main gear.

## Other investigations on N9768 (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 OAK79DVG62](https://openairdocs.org/ntsb/OAK79DVG62), Jul 17, 1979: Grumman G-164A (N9768), Yuba City, CA, 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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