Airport officials say the plane was en route from John Wayne Airport when it lost power.
Witnesses say the plane was very low when it flew over the Corona Butterfield Park Baseball Field where several games were going on. It clipped some tree branches, began to cartwheel, crashed near the edge of the park and skidded across the street.
The pilot, identified as 49-year-old Alan Sinman of Corona, was taken to the hospital. There was no word on his condition.