# NTSB MKC77FER69: Rockwell S-2R, N75GS, Stewartville, MN, July 29, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 29, 1977
- Place: Stewartville, MN · STEWARTVILLE, MN
- Location: 43.8610° N, 92.4900° W: Placed by OpenAirDocs: center of Stewartville, MN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.8610&lon=-92.4900&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 18, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 145991
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC77FER69
- Page: https://openairdocs.org/ntsb/MKC77FER69

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3158  77/7/29    STEWARTVILLE,MN     ROCKWELL S-2R       CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 36, 5543
        TIME - 0640                    N75GS               PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 70 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          ROCHESTER,MN                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: EN ROUTE TO TREAT CROP
           COLLIDED WITH: CROP                                      LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: PISTON,PISTON RINGS
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        FACTOR(S)
           TERRAIN - HIGH VEGETATION
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-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 - CORN                                      TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          GLOVES - NOT USED                                        GOGGLES - NOT USED
          CRASH HELMET - AVAILABLE USED                            COCKPIT CRASHPAD - NOT INSTALLED
          CRASH BAR - INSTALLED                                    TANK/HOPPER-LOCATION - FORWARD OF PILOT
        REMARKS- NO FOUR PISTON BROKE AT PISTON RING.
```

## Aircraft

- Registration: [N75GS](https://openairdocs.org/deregistered/N75GS-2016-03-01), registration cancelled 2016-03-01, S/N 5038R (OpenAirDocs)
- Reported make and model: ROCKWELL S-2R
- Registry model: [Rockwell International S-2R](https://openairdocs.org/model/rockwell-international-s-2r) (registry code 7630202) (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 19770729032329A](https://openairdocs.org/incident/19770729032329A), Jul 29, 1977: Ayres S2R, Stewartville, MN, Substantial damage. No four piston broke at piston ring.

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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