# NTSB CHI73DEP27: Grumman G-164, N73W, Antigo, WI, September 11, 1972

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 11, 1972
- Place: Antigo, WI · ANTIGO, WI
- Location: 45.1413° N, 89.1552° W: Placed by OpenAirDocs: center of Antigo, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.1413&lon=-89.1552&mi=10
- Phase of flight: [Uncontrolled descent](https://openairdocs.org/ntsb-phases/650) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 20, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 168348
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI73DEP27
- Page: https://openairdocs.org/ntsb/CHI73DEP27

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3370  72/9/11    ANTIGO,WIS          GRUMMAN G-164       CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1655                    N73W                PX-  0  0  0  ASSOC CROP CTL ACTIVITY   AGE 32, 8500 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            2500 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          ANTIGO,WIS                  PLAINFIELD,WIS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - PHYSICAL IMPAIRMENT
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 1820                       KIND OF OPERATION - FERRY
          TYPE OF CHEMICAL USED - DRY CHEMICAL-NONTOXIC            PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED
          GLOVES - USED                                            GOGGLES - NOT USED
          CRASH HELMET - AVAILABLE-NOT USED                        COCKPIT CRASHPAD - INSTALLED
          CRASH BAR - INSTALLED                                    TANK/HOPPER-LOCATION - FORWARD OF PILOT
        REMARKS- PLT TEMPORARILY BLINDED BY CHEMICAL DUST WHICH CAME FROM ACFT BELLY. CRASHED IN NORRIS LAKE.
```

## Aircraft

- Registration: N73W (not matched to a registry record)
- Reported make and model: GRUMMAN G-164
- Category: Airplane
- Engines: reciprocating
- Damage: 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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