# NTSB FTW79FQG41: Grumman G-164B, N6605Q, Sylvester, TX, May 26, 1979

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 26, 1979
- Place: Sylvester, TX · SYLVESTER, TX
- Location: 32.7229° N, 100.2499° W: Placed by OpenAirDocs: center of Sylvester, TX, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.7229&lon=-100.2499&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report July 3, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 136215
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW79FQG41
- Page: https://openairdocs.org/ntsb/FTW79FQG41

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1123  79/5/26  NR.SYLVESTER,TX       GRUMMAN G-164B      CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 38, 1475
        TIME - 1000                    N6605Q              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 500 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         SYLVESTER,TX                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: PROCEDURE TURNAROUND
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           POWERPLANT - IGNITION SYSTEM: MAGNETOS
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER ALIGNMENT/ADJUSTMENT
           MISCELLANEOUS ACTS,CONDITIONS - LOOSE,PART/FITTING
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 1300                       KIND OF OPERATION - DEFOLIATION (LIQUID)
          KIND OF CROP - OTHER                                     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 - NOT INSTALLED                         CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  1941                SWATH RUN-HOW FLOWN - CROSSWIND
          PROCEDURE TURNAROUND - THIRD 1/3 TURN
        REMARKS- L MAG UNCOUPLED OUT OF TIME.ENGINE BACKFIRED.SPRAYING WEEDS.
```

## Aircraft

- Registration: [N6605Q](https://openairdocs.org/deregistered/N6605Q-2001-05-22), registration cancelled 2001-05-22, S/N 132B (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)
- 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 19790526011109A](https://openairdocs.org/incident/19790526011109A), May 26, 1979: Gulstm G164B, Sylvester, TX, Substantial damage. Engine backfired and stopped during spray operation. Landed in tall grass, flipped over. Loose magneto

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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