Six people, including three children, escaped injury after a small plane made an emergency landing at Pine River Regional Airport Sunday afternoon. The Cass County Sheriff's Office says a landing gear malfunction forced the 1984 Beechcraft Bonanza to skid along the runway before coming to a stop. The airport was temporarily closed while crews removed the aircraft and cleared debris. The 71-year-old pilot from Pella, Iowa, and five passengers were not hurt. Investigators are still working to determine what caused the landing gear failure.