The pilot had been maneuvering low level in an area of wind generators and power lines for 30 minutes. He started a slow right climbing turn toward a new work area, which was to the right front of the airplane. The sun was behind a cloud and he could see power lines and wind generators in the new work area. Moments later the sun came from behind the cloud and temporarily blinded him. At that instant his rear seat observer told him to 'look out.' He was flying up a draw and noted wires angling across his flight path. He maneuvered to avoid them, but contacted the last wire with his right main gear. The airplane fell to the ground when the wire snapped.

The National Transportation Safety Board determines the probable cause(s) of this accident as follows:

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