Approach and Landing
On the arrival approach to a private sod/grass airport, the pilot circled the field twice to survey the landing area. The pilot observed that the entire grass field, including the runway, had been mowed, but the runway was not marked. Trees were present at the approach end of the runway, and an upslope of 25 degrees was noted for the landing threshold.
The Accident
During the landing roll, which occurred left of the centerline of the sod/grass runway, the left wing struck a fence and a steel corner post. The impact caused the wing to separate from the airplane. The pilot reported that he did not see the fence, which was parallel to runway 25. Runway 25 is described as 3,000 feet long and 100 feet wide.
Pilot Observation
The pilot's pre-landing survey included circling the field twice, but the fence parallel to the runway was not observed. The unmarked runway and the upslope at the threshold may have contributed to the pilot's difficulty in identifying the obstacle. No further details were provided regarding the aircraft, occupants, or outcome of the accident.