# NTSB FTW79DPJ17: Grumman G-164B, N6686Q, Ft.Cobb, OK, May 16, 1979

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 16, 1979
- Place: Ft.Cobb, OK · FT.COBB, OK
- Location: 35.1153° N, 98.4453° W: Placed by OpenAirDocs: center of Fort Cobb, OK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=35.1153&lon=-98.4453&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 October 19, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 135390
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW79DPJ17
- Page: https://openairdocs.org/ntsb/FTW79DPJ17

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2187  79/5/16    FT.COBB,OK          GRUMMAN G-164B      CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE UNK/NR,
        TIME - 1000                    N6686Q              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   5000 TOTAL HOURS, 300 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - PRIVATE
        DEPARTURE POINT             INTENDED DESTINATION
          FT.COBB,OK                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           COLLIDED WITH: TREES                                     LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
           TERRAIN - HIGH OBSTRUCTIONS
        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 - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - NOT USED
          GOGGLES - NOT USED                                       COCKPIT CRASHPAD - INSTALLED
          CRASH BAR - INSTALLED                                    TANK/HOPPER-LOCATION - FORWARD OF PILOT
```

## Aircraft

- Registration: N6686Q (not matched to a registry record)
- Reported make and model: GRUMMAN G-164B
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Private

## 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 19790516025499A](https://openairdocs.org/incident/19790516025499A), May 16, 1979: Gulstm G164B, Ft Cobb, OK, Substantial damage. Engine lost oil pressure and stopped after takeoff for a spray operation. Cause undetermined.

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.