NTSB Identification: CHI95LA324. Accident occurred Saturday,
September 16, 1995 in CAMP LAKE, WI Probable Cause Approval
Date: 11/11/1996 Aircraft: Cessna 177, registration: N3497T
Injuries: 2 Uninjured.   The airplane encountered an updraft
followed by a downdraft while crossing over a barn on short
final approach to land. Shortly after crossing over the barn,
the airplane began losing altitude. The pilot applied full
power, but was unable to arrest the sink rate. The left wing of
the airplane contacted and severed a powerline wire. After that,
the pilot was unable to maintain runway align, and the airplane
touched down on the left edge of the runway with the left wing
contacting a corn crop. The airplane then veered into the crop
and traveled approximately 60 feet further before coming to a
stop.   the pilot's inadequate compensation for wind conditions,
and failure to maintain altitude/clearance from the power line,
while on short final approach. The downdraft was a related
factor.  Full narrative availabl