# NTSB FTW75DRG05: Grumman 164-A, N9793, San Benito, TX, July 16, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 16, 1974
- Place: San Benito, TX · SAN BENITO, TX
- Location: 26.1294° N, 97.6440° W: Placed by OpenAirDocs: center of San Benito, TX, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=26.1294&lon=-97.6440&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 August 28, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 130235
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW75DRG05
- Page: https://openairdocs.org/ntsb/FTW75DRG05

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2168  74/7/16    SAN BENITO,TEX      GRUMMAN 164-A       CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 55, 10549
        TIME - 1200                    N9793               PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 4000 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - SAN BENITO MUNI
        DEPARTURE POINT             INTENDED DESTINATION
          SAN BENITO,TEX              LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: UNCONTROLLED                TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PERSONNEL - OPERATIONAL SUPERVISORY PERSONNEL: DEFICIENCY,COMPANY MAINTAINED EQPMT,SERVICES,REGULATION
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           AIRFRAME - FLIGHT CONTROL SURFACES: AILERON SURFACES,ATTACHMENTS
           MISCELLANEOUS ACTS,CONDITIONS - JAMMED
           MISCELLANEOUS - FOREIGN MATERIAL AFFECTING NORMAL OPERATIONS
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 8000                       KIND OF OPERATION - DEFOLIATION (LIQUID)
          KIND OF CROP - COTTON                                    TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT
        REMARKS- PLIERS FRM SPRAY LOADING & SERVICING PIT FOUND AT IMPACT AREA.
```

## Aircraft

- Registration: [N9793](https://openairdocs.org/deregistered/N9793-2013-02-08), registration cancelled 2013-02-08, S/N 1268 (OpenAirDocs)
- Reported make and model: GRUMMAN 164-A
- Registry model: [Grumman Acft ENG Cor-Schweizer G-164A](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164a) (registry code 3952801) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: San Benito Muni

## 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 19740716023599A](https://openairdocs.org/incident/19740716023599A), Jul 16, 1974: Gulstm G164A, San Benito, TX, Substantial damage. Pliers frm spray loading & servicing pit found at impact area.

## Other investigations on N9793 (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 SEA96LA112](https://openairdocs.org/ntsb/SEA96LA112), Jun 6, 1996: Grumman-Schweizer G-164A (N9793), Prescott, WA, substantial damage. Probable cause: failure of the pilot to visually clear his flight path, after allowing his attention to be diverted, and his resultant failure to maintain sufficient altitude/clearance from a hill. The hilly terrain…

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.