# NTSB FTW74DPM28: Grumman G-164, N481Y, Atoka, OK, June 17, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 17, 1974
- Place: Atoka, OK · ATOKA, OK
- Location: 34.3864° N, 96.1311° W: Placed by OpenAirDocs: center of Atoka, OK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.3864&lon=-96.1311&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 5, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 173404
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW74DPM28
- Page: https://openairdocs.org/ntsb/FTW74DPM28

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1713  74/6/17  NR.ATOKA,OKLA         GRUMMAN G-164       CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 41, 7000
        TIME - 0700                    N481Y               PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, UNK/NR IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         ATOKA,OKLA                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: PROCEDURE TURNAROUND
           NOSE OVER/DOWN                                           LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: MASTER AND CONNECTING RODS
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           TERRAIN - ROUGH/UNEVEN
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - PASTURE                                   TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - USED
          GOGGLES - USED                                           CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -HILLY
          ELEVATION-AREA BEING TREATED-FEET -  800                 SWATH RUN-HOW FLOWN - DOWNWIND
          PROCEDURE TURNAROUND - FIRST 1/3 TURN
        REMARKS- ENG SEIZED,PROP CAME OFF.
```

## Aircraft

- Registration: [N481Y](https://openairdocs.org/aircraft/N481Y), registered now, S/N 126, built 1962 (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: [Continental W670 series](https://openairdocs.org/engine/continental-w670-series) (registry code 17018, 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 19740617018889A](https://openairdocs.org/incident/19740617018889A), Jun 17, 1974: Grumav G164, Atoka, OK, Substantial damage. Eng seized,prop came off.

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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