# NTSB LAX78FUJ75: Grumman G-164B, N6729Q, Coolidge, AZ, July 2, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 2, 1978
- Place: Coolidge, AZ · COOLIDGE, AZ
- Location: 32.9778° N, 111.5176° W: Placed by OpenAirDocs: center of Coolidge, AZ, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.9778&lon=-111.5176&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 July 31, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 141740
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX78FUJ75
- Page: https://openairdocs.org/ntsb/LAX78FUJ75

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1253   78/7/2  NR.COOLIDGE,AZ        GRUMMAN G-164B      CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 55, 20310
        TIME - 1045                    N6729Q              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 500 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - DESERT STRIP
        DEPARTURE POINT             INTENDED DESTINATION
         COOLIDGE,AZ                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: MUSH                                              TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
        FACTOR(S)
           POWERPLANT - IGNITION SYSTEM: SPARK PLUG
           MISCELLANEOUS ACTS,CONDITIONS - CARBON DEPOSITS
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY LOADED AIRCRAFT-WEIGHT-AND/OR C.G.
           WEATHER - HIGH DENSITY ALTITUDE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      93
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          240                                                       4
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 9999                       KIND OF OPERATION - FERTILIZING (DUST)
          KIND OF CROP - COTTON                                    TYPE OF CHEMICAL USED - DRY CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  1500                SWATH RUN-HOW FLOWN - UNKNOWN/NOT REPORTED
        REMARKS- ACFT OVRLD BY 863 LBS.DNSTY ALT 4000 FT.
```

## Aircraft

- Registration: [N6729Q](https://openairdocs.org/deregistered/N6729Q-2018-03-02), registration cancelled 2018-03-02, S/N 243B, built 1978 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164B
- Registry model: [Grumman Acft ENG Cor-Schweizer G-164B](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164b) (registry code 3952802) (OpenAirDocs)
- Registry engine: [AiResearch TPE331 series](https://openairdocs.org/engine/airesearch-tpe331-series) (registry code 01517, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Desert Strip

## 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 19780702016909A](https://openairdocs.org/incident/19780702016909A), Jul 2, 1978: Gulstm G164A, Coolidge, NV, Substantial damage. Acft ovrld by 863 lbs. Dnsty alt 4000 ft.

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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