# NTSB FTW73FQG23: Grumman G-164, N10231, Roby, TX, November 3, 1972

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: November 3, 1972
- Place: Roby, TX · ROBY, TX
- Location: 32.7460° N, 100.3794° W: Placed by OpenAirDocs: center of Roby, TX, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.7460&lon=-100.3794&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report March 10, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 169038
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW73FQG23
- Page: https://openairdocs.org/ntsb/FTW73FQG23

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2954   72/11/3   ROBY,TEX            GRUMMAN G-164       CR-  0  1  0  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1500                    N10231              PX-  0  0  0  AERIAL APPLICATION        AGE 23, 1200 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            20 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          BOB TERRY STRIP             LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: MANEUVER TO AVOID OBSTRUCTION
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED DISTANCE,SPEED,ALTITUDE OR CLEARANCE
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
        FACTOR(S)
           PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  300                       KIND OF OPERATION - DEFOLIATION (LIQUID)
          KIND OF CROP - COTTON                                    TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -ROLLING
          SWATH RUN-HOW FLOWN - CROSSWIND                          PROCEDURE TURNAROUND - THIRD 1/3 TURN
         FIRE AFTER IMPACT
        REMARKS- FAILED TO INCREASE PROP RPM DURING ATTEMPT TO INCREASE ENGINE POWER  POST IMPACT FIRE
```

## Aircraft

- Registration: [N10231](https://openairdocs.org/deregistered/N10231-1973-06-26), registration cancelled 1973-06-26, S/N 31 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164
- Registry model: [Grumman G-164](https://openairdocs.org/model/grumman-g-164) (registry code 3952702) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Sweetwater

## Other investigations on N10231 (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 SEA70DWG08](https://openairdocs.org/ntsb/SEA70DWG08), Apr 1, 1970: Grumman G-164 (N10231), Genesee, ID, substantial damage

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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