# NTSB FTW77FRJ20: Grumman G-164A, N959X, Gilliam, LA, August 30, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 30, 1977
- Place: Gilliam, LA · GILLIAM, LA
- Location: 32.8282° N, 93.8418° W: Placed by OpenAirDocs: center of Gilliam, LA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.8282&lon=-93.8418&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 13, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 146258
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW77FRJ20
- Page: https://openairdocs.org/ntsb/FTW77FRJ20

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2196  77/8/30    GILLIAM,LA          GRUMMAN G-164A      CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 27, 1000
        TIME - 1330                    N959X               PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 500 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - HOSSTON
        DEPARTURE POINT             INTENDED DESTINATION
          GILLIAM,LA                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: SWATH RUN
           COLLIDED WITH: WIRES/POLES                               LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: CYLINDER ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           PILOT IN COMMAND - MISJUDGED CLEARANCE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - JETTISONED LOAD
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  650                       KIND OF OPERATION - SPRAYING CROPS
          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                  TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  150                 SWATH RUN-HOW FLOWN - CROSSWIND
        REMARKS- #1 CYL HEAD SEPARATED.BALLOONED INTO WIRE AFTR LOAD JETTISONED.
```

## Aircraft

- Registration: [N959X](https://openairdocs.org/deregistered/N959X-2013-07-01), registration cancelled 2013-07-01, S/N 473, built 1967 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164A
- Registry model: [Grumman G-164A](https://openairdocs.org/model/grumman-g-164a) (registry code 3952704) (OpenAirDocs)
- Registry engine: [Jacobs R755A series](https://openairdocs.org/engine/jacobs-r755a-series) (registry code 35006, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Hosston

## 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 19770830027169A](https://openairdocs.org/incident/19770830027169A), Aug 30, 1977: Grumav G164A, Gilliam, LA, Substantial damage. #1 Cyl head separated. Ballooned into wire aftr load jettisoned.

## Other investigations on N959X (2)

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 MIA76FKQ23](https://openairdocs.org/ntsb/MIA76FKQ23), Oct 14, 1975: Grumman G-164A (N959X), Holly Bluff, MS, substantial damage
- [NTSB MIA73DLA33](https://openairdocs.org/ntsb/MIA73DLA33), Apr 20, 1973: Grumman G-164A (N959X), Jay, FL, 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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