# NTSB MKC79FCQ20: Piper PA-25, N7641Z, Mayday, KS, April 28, 1979

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: April 28, 1979
- Place: Mayday, KS · MAYDAY, KS
- Location: 39.5378° N, 96.8843° W: Placed by OpenAirDocs: center of Township of May Day, KS, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.5378&lon=-96.8843&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report June 6, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 136037
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC79FCQ20
- Page: https://openairdocs.org/ntsb/MKC79FCQ20

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0779  79/4/28    MAYDAY,KS           PIPER PA-25         CR-  1  0  0  COMMERCIAL                COMMERCIAL, AGE 38, 1083
        TIME - 0653                    N7641Z              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 20 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          MAYDAY,KS                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: TREES                                     IN FLIGHT: SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OBJECTS OR OBSTRUCTIONS
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -    1                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - 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 -  1200                SWATH RUN-HOW FLOWN - WIND CALM
```

## Aircraft

- Registration: [N7641Z](https://openairdocs.org/deregistered/N7641Z-2018-01-08), registration cancelled 2018-01-08, S/N 25-3776, built 1966 (OpenAirDocs)
- Reported make and model: PIPER PA-25
- Registry model: [Piper PA-25-235](https://openairdocs.org/model/piper-pa-25-235) (registry code 7102504) (OpenAirDocs)
- Registry engine: [Lycoming 0-540 series](https://openairdocs.org/engine/lycoming-0-540-series) (registry code 41532, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

## 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 19790428008279A](https://openairdocs.org/incident/19790428008279A), Apr 28, 1979: Piper PA25235, Mayday, KS, Destroyed. Pilot hit the top of a tree while spraying crops. This was the pilot's first day as an ag pilot.

## Other investigations on N7641Z (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 MKC70D0186](https://openairdocs.org/ntsb/MKC70D0186), Jul 25, 1969: Piper PA-25 (N7641Z), Kansas City, KS, 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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