No one was injured when a small airplane struck a power line northeast of Madison on Sunday morning. The Lake County Sheriff’s Office reports that the incident happened just after 10:30 Sunday morning on 228th Street near 455th Avenue. Sheriff Tim Walburg said an investigation into the incident determined that 43-year-old Jorge Herra of Costa Rica was taking flying lessons from Ronald Heiman of Summerfield, Kansas, practicing agricultural low level GPS flying, when the plane hit a power line. Walburg said the airplane was later located at the Madison Airport. The incident caused a power outage to around 80 Sioux Valley Energy customers for a while Sunday morning. Walburg said the Madison Police Department assisted in the investigation, and the incident was also reported to the Federal Aviation Administration.