The power was interrupted to the #5 and #8 ventilation fans. The fans were down from 3:57pm-3:59pm. The #5 fan went back down @4:04pm, due to motor overtemp. An announcement was made to withdraw from the mine @4:19pm. After ventilation was restored, an exam of the mine was made and persons were permitted to re-enter the mine. All agencies were properly notified.