# NTSB FTW71FPG66: Grumman G-164, N642U, Eudora, AR, June 24, 1971

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: June 24, 1971
- Place: Eudora, AR · EUDORA, AR
- Location: 33.1189° N, 91.2640° W: Placed by OpenAirDocs: center of Eudora, AR, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.1189&lon=-91.2640&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report March 1, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 161759
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW71FPG66
- Page: https://openairdocs.org/ntsb/FTW71FPG66

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2433  71/6/24    EUDORA,ARK          GRUMMAN G-164       CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 24, 720
        TIME - 1030                    N642U               PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 635 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - BROWNS
        DEPARTURE POINT             INTENDED DESTINATION
          EUDORA,ARK                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: PROCEDURE TURNAROUND
           STALL                                                    LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: VALVE ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           MISCELLANEOUS - EVASIVE MANEUVER TO AVOID COLLISION
        FACTOR(S)
           PILOT IN COMMAND - IMPROPER IN-FLIGHT DECISIONS OR PLANNING
           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 - UNKNOWN/NOT REPORTED       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - BEANS                                     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 -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  120                 SWATH RUN-HOW FLOWN - CROSSWIND
          PROCEDURE TURNAROUND - FIRST 1/3 TURN
        REMARKS- ENG LOST PWR DUE 3 WEAK EXHAUST VALVES.PLT OVERFLEW SUITABLE ARPT.STALLED TRYING TO AVOID TREES.
```

## Aircraft

- Registration: [N642U](https://openairdocs.org/deregistered/N642U-1972-10-06), registration cancelled 1972-10-06, S/N 378 (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: Substantial damage
- Airport: Browns

## Other investigations on N642U (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 FTW72FPG75](https://openairdocs.org/ntsb/FTW72FPG75), May 16, 1972: Grumman G-164 (N642U), Stuttgart, AR, 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.

---
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.