Last modified: Tuesday, November 18, 2008 10:50 AM PST Lane County power system fails EUGENE (AP) — The Lane County government’s cranky, aging power system failed for the second time in three months Monday, forcing evacuation of the courthouse in downtown Eugene and temporarily shutting down some computer and communication systems in the Eugene-Springfield area. There was no failure of the 911 system and no report of public safety incidents, and power was being restored Monday evening, Sheriff Russ Burger said. But the malfunction was a critical concern, nevertheless. ‘‘The potential for injury goes up pretty significantly in this type of situation,’’ Burger said. A circuit blew in the county Public Service Building temporarily shutting down a generator that powers county electrical systems and numerous information systems used by county government, the courthouse and local cities.