# NTSB MKC79FTK21: Piper PA-36, N9956P, Hayes, SD, July 27, 1979

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 27, 1979
- Place: Hayes, SD · HAYES, SD
- Location: 44.3703° N, 101.0215° W: Placed by OpenAirDocs: center of Hayes, SD, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.3703&lon=-101.0215&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 19, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 135029
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC79FTK21
- Page: https://openairdocs.org/ntsb/MKC79FTK21

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1356  79/7/27    HAYES,SD            PIPER PA-36         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 21, 719
        TIME - 1230                    N9956P              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 375 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - HAYES
        DEPARTURE POINT             INTENDED DESTINATION
          HAYES,SD                    LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - DIVERTED ATTENTION FROM OPERATION OF AIRCRAFT
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  720                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE-NOT USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -ROLLING
          ELEVATION-AREA BEING TREATED-FEET -  2000                SWATH RUN-HOW FLOWN - CROSSWIND
         FIRE AFTER IMPACT
```

## Aircraft

- Registration: [N9956P](https://openairdocs.org/deregistered/N9956P-1982-04-15), registration cancelled 1982-04-15, S/N 36-7560067 (OpenAirDocs)
- Reported make and model: PIPER PA-36
- Registry model: [Piper PA-36-320](https://openairdocs.org/model/piper-pa-36-320) (registry code 7103614) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Hayes

## 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 19790727018459A](https://openairdocs.org/incident/19790727018459A), Jul 27, 1979: Piper PA36285, Hayes, SD, Destroyed. Hit ground during spray run. Failed to see and clear a ridge in field.

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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