A private plane slid off the runway at Sunriver Airport late Sunday morning after developing mechanical problems during a landing.  The pilot was the only one on-board. "There were no injuries. There was a minor fuel leak once the plane came to rest. Firefighters responded and were able to contain the fuel leak very shortly. There appeared to be damage to the landing gear portion of the aircraft when it came to rest." Sunriver Fire spokesman Jim Bennett says the single-engine Cesena Centurion 210 is not based in Bend. He says the runway was closed for several hours before the plane could be removed from the area.