# NTSB OAK79DVG22: Grumman G-164A, N7863, Rumsey, CA, March 14, 1979

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 14, 1979
- Place: Rumsey, CA · RUMSEY, CA
- Location: 38.8933° N, 122.2436° W: Placed by OpenAirDocs: center of Rumsey, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.8933&lon=-122.2436&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report April 5, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 137834
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK79DVG22
- Page: https://openairdocs.org/ntsb/OAK79DVG22

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0250  79/3/14    RUMSEY,CA           GRUMMAN G-164A      CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE UNK/NR,
        TIME - 1000                    N7863               PX-  0  0  0  AERIAL APPLICATION        6000 TOTAL HOURS, 1800 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          BROOKS,CA                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: PROCEDURE TURNAROUND
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED DISTANCE,SPEED,AND ALTITUDE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - FERTILIZING (LIQUID)
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          GLOVES - USED                                            GOGGLES - NOT USED
          CRASH HELMET - AVAILABLE USED                            COCKPIT CRASHPAD - NOT INSTALLED
          CRASH BAR - INSTALLED                                    TANK/HOPPER-LOCATION - FORWARD OF PILOT
          TERRAIN-TYPE -LEVEL,FLAT                                 ELEVATION-AREA BEING TREATED-FEET -  200
          SWATH RUN-HOW FLOWN - CROSSWIND                          PROCEDURE TURNAROUND - SECOND 1/3 TURN
```

## Aircraft

- Registration: [N7863](https://openairdocs.org/deregistered/N7863-2013-05-09), registration cancelled 2013-05-09, S/N 992, built 1972 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164A
- 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

## 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 19790314004669A](https://openairdocs.org/incident/19790314004669A), Mar 14, 1979: Gulstm G164, Rumsey, CA, Substantial damage. During agricultural operations the pilot attempted a downwind turn in canyon. Hit trees.

## Other investigations on N7863 (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 SEA76DYA25](https://openairdocs.org/ntsb/SEA76DYA25), Jun 5, 1976: Grumman G-164A (N7863), Hamer, ID, 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.