# NTSB MKC66F0049: Piper PA-11, N4777H, Frankfort, SD, May 28, 1965

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: May 28, 1965
- Place: Frankfort, SD · FRANKFORT, SD
- Location: 44.8777° N, 98.3092° W: Placed by OpenAirDocs: center of Frankfort, SD, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.8777&lon=-98.3092&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report August 10, 1965
- Report: Brief approved by the director
- NTSB case key (mKey): 177946
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC66F0049
- Page: https://openairdocs.org/ntsb/MKC66F0049

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1369  65/5/28  NR.FRANKFORT S DAK    PIPER PA-11         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 27, 413
        TIME - 2000                    N4777H              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: WIRES/POLES                               IN FLIGHT: STARTING SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED DISTANCE AND ALTITUDE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -   20                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - BELLY                             TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  1300                SWATH RUN-HOW FLOWN - WIND CALM
```

## Aircraft

- Registration: [N4777H](https://openairdocs.org/deregistered/N4777H-1971-06-08), registration cancelled 1971-06-08, S/N 11-707 (OpenAirDocs)
- Reported make and model: PIPER PA-11
- Registry model: [Piper PA-11](https://openairdocs.org/model/piper-pa-11) (registry code 7101102) (OpenAirDocs)
- 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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