# NTSB FTW78DPG74: Grumman G-164A, N470Y, Okean, AR, August 10, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 10, 1978
- Place: Okean, AR · OKEAN, AR
- Location: 36.1715° N, 90.8183° W: Placed by OpenAirDocs: center of O'Kean, AR, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.1715&lon=-90.8183&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 18, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 140528
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW78DPG74
- Page: https://openairdocs.org/ntsb/FTW78DPG74

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2090  78/8/10    OKEAN,AR            GRUMMAN G-164A      CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1500                    N470Y               PX-  0  0  0  AERIAL APPLICATION        AGE 36, 1300 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            355 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          OKEAN,AR                    LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - SELECTED UNSUITABLE TERRAIN
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
           POWERPLANT - ENGINE STRUCTURE: BLOWER,IMPELLER ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING OFF AIRPORT
                                  SUSPECTED MECHANICAL DISCREPANCY
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 1200                       KIND OF OPERATION - SEEDING CROPS
          KIND OF CROP - GRAIN FIELDS                              PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED
          GLOVES - NOT USED                                        GOGGLES - NOT USED
          CRASH HELMET - AVAILABLE USED                            CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -ROLLING
          ELEVATION-AREA BEING TREATED-FEET -  250                 SWATH RUN-HOW FLOWN - CROSSWIND
```

## Aircraft

- Registration: [N470Y](https://openairdocs.org/deregistered/N470Y-2017-08-23), registration cancelled 2017-08-23, S/N 115, built 1962 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164A
- Registry model: [Grumman G-164](https://openairdocs.org/model/grumman-g-164) (registry code 3952702) (OpenAirDocs)
- Registry engine: [Continental W670 series](https://openairdocs.org/engine/continental-w670-series) (registry code 17018, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

## 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 19780810023149A](https://openairdocs.org/incident/19780810023149A), Aug 10, 1978: Grumav G164, Okean, AR, Destroyed

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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