# NTSB OAK71DVG87: Grumman G164, N699Y, Robbins, CA, June 8, 1971

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: June 8, 1971
- Place: Robbins, CA · ROBBINS, CA
- Location: 38.8669° N, 121.7071° W: Placed by OpenAirDocs: center of Robbins, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.8669&lon=-121.7071&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report February 2, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 161427
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK71DVG87
- Page: https://openairdocs.org/ntsb/OAK71DVG87

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1908   71/6/8    ROBBINS,CALIF       GRUMMAN G164        CR-  0  1  0  COMMERCIAL                COMMERCIAL, AGE 56, 6000
        TIME - 0700                    N699Y               PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 435 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - AIKEN STRIP
        DEPARTURE POINT             INTENDED DESTINATION
          ROBBINS,CALIF               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           COLLISION WITH GROUND/WATER: CONTROLLED                  LANDING: OTHER
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: CYLINDER ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           MISCELLANEOUS - EVASIVE MANEUVER TO AVOID COLLISION
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 3500                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - RICE                                      TYPE OF CHEMICAL USED - DRY CHEMICAL-TOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - USED
          GOGGLES - USED                                           CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT
        REMARKS- NR 3 CYL HEAD CRACKED PARALLEL TO PISTON TOP THRU SPRK PLUG HOLES.CRSH.LNDD AVDG 7000GAL TEST TANK
```

## Aircraft

- Registration: [N699Y](https://openairdocs.org/deregistered/N699Y-2011-10-17), registration cancelled 2011-10-17, S/N 250, built 1963 (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: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Aiken Strip

## Other investigations on N699Y (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 LAX94LA313](https://openairdocs.org/ntsb/LAX94LA313), Aug 11, 1994: Schweizer G-164-A (N699Y), Laton, CA, substantial damage. Probable cause: failure of the No.7 cylinder for an unspecified reason.

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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