# NTSB OAK66F0266: Grumman G-164, N617Y, Richvale, CA, April 21, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 21, 1966
- Place: Richvale, CA · RICHVALE, CA
- Location: 39.4937° N, 121.7508° W: Placed by OpenAirDocs: center of Richvale, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.4937&lon=-121.7508&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 June 3, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 172047
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK66F0266
- Page: https://openairdocs.org/ntsb/OAK66F0266

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0863  66/4/21    RICHVALE CALIF      GRUMMAN G-164       CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1000                    N617Y               PX-  0  0  0  ASSOC CROP CTL ACTIVITY   AGE 31, 9200 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            75 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           COLLIDED WITH: DIRT BANK                                 LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: CYLINDER ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 9000                       KIND OF OPERATION - FERTILIZING (DUST)
          KIND OF CROP - RICE                                      TYPE OF CHEMICAL USED - DRY CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - NOT USED
          GOGGLES - USED                                           CRASH HELMET - AVAILABLE-NOT USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  150
        REMARKS- NO.4 CYLINDER FAILED
```

## Aircraft

- Registration: [N617Y](https://openairdocs.org/deregistered/N617Y-1998-11-09), registration cancelled 1998-11-09, S/N 232 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164
- 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 N617Y (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 FTW98LA161](https://openairdocs.org/ntsb/FTW98LA161), Mar 28, 1998: Grumman G-164 (N617Y), St. Joseph, LA, destroyed. Probable cause: The pilot's failure to maintain clearance from the trees. A factor was the lack of suitable terrain for the ensuing forced landing.

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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