# NTSB OAK71FVG65: Grumman G-164, N716Y, Biggs, CA, April 15, 1971

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: April 15, 1971
- Place: Biggs, CA · BIGGS, CA
- Location: 39.4115° N, 121.7114° W: Placed by OpenAirDocs: center of Biggs, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.4115&lon=-121.7114&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report March 10, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 160759
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK71FVG65
- Page: https://openairdocs.org/ntsb/OAK71FVG65

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2688  71/4/15    BIGGS,CALIF         GRUMMAN G-164       CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 20, 300
        TIME - 1735                    N716Y               PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 80 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          BIGGS,CALIF                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: STARTING SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - EXERCISED POOR JUDGMENT
           PILOT IN COMMAND - SPATIAL DISORIENTATION
        FACTOR(S)
           WEATHER - OBSTRUCTIONS TO VISION
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TYPE OF WEATHER CONDITIONS
          DUST                                                     VFR
        TYPE OF FLIGHT PLAN
          NONE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -   18                       KIND OF OPERATION - FERTILIZING (DUST)
          KIND OF CROP - RICE                                      TYPE OF CHEMICAL USED - DRY CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - NOT 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 -  150                 SWATH RUN-HOW FLOWN - DOWNWIND
          PROCEDURE TURNAROUND - THIRD 1/3 TURN
        REMARKS- COULD NOT LINE UP WITH FLAGGERS DRG 1ST ATMT DUE HEAVY DUST.
```

## Aircraft

- Registration: [N716Y](https://openairdocs.org/deregistered/N716Y-2023-04-25), registration cancelled 2023-04-25, S/N 278, built 1964 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164
- Registry model: [Grumman G-164](https://openairdocs.org/model/grumman-g-164) (registry code 3952702) (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

## Other investigations on N716Y (4)

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 WPR11CA198](https://openairdocs.org/ntsb/WPR11CA198), May 4, 2011: Grumman G-164 (N716Y), Princeton, CA, substantial damage. Probable cause: The pilot’s failure to maintain adequate airspeed while maneuvering, resulting in an aerodynamic stall and collision with terrain.
- [NTSB OAK66D0225](https://openairdocs.org/ntsb/OAK66D0225), Apr 5, 1966: Grumman G-164 (N716Y), Chico, CA, destroyed
- [NTSB UNK64X3213](https://openairdocs.org/ntsb/UNK64X3213), Aug 4, 1964: Grumman G164 (N716Y), Alpaugh, CA, destroyed
- [NTSB UNK64X2143](https://openairdocs.org/ntsb/UNK64X2143), Jun 6, 1964: Grunnan G164 (N716Y), Alpaugh, 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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