# NTSB CHI70F0240: Grumman G-164, N11983, Mclean, IL, August 11, 1969

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 11, 1969
- Place: Mclean, IL · MCLEAN, IL
- Location: 40.3136° N, 89.1686° W: Placed by OpenAirDocs: center of McLean, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.3136&lon=-89.1686&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 25, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 161529
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI70F0240
- Page: https://openairdocs.org/ntsb/CHI70F0240

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3406  69/8/11  NR.MCLEAN,ILL         GRUMMAN G-164       CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 47, 10000
        TIME - 0930                    N11983              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 94 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         MCLEAN,ILL                  MCLEAN,ILL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: CROP                                      IN FLIGHT: SWATH RUN
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED ALTITUDE AND CLEARANCE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  200                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - CORN                                      TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - NOT USED
          GOGGLES - 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 -  742
```

## Aircraft

- Registration: [N11983](https://openairdocs.org/deregistered/N11983-2013-01-30), registration cancelled 2013-01-30, S/N 12A, built 1963 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164
- Registry model: [Grumman G-164](https://openairdocs.org/model/grumman-g-164) (registry code 3952702) (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

## Other investigations on N11983 (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 FTW76FRD22](https://openairdocs.org/ntsb/FTW76FRD22), Nov 25, 1975: Grumman G-164 (N11983), Iowa, LA, 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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