Yesterday, May 1, at approximately 8:00 PM, Monarch crews responded to an Alert 3 (aircraft crash) with 3 persons on board. Upon arrival, fire crews found a plane on its nose, with all occupants out of the aircraft, uninjured. There was no fire, but fuel was leaking from the craft. The pilot reported that a wind gust flipped the plane. Fire crews stood by until approximately 10:20 PM when the plane was uprighted.