OSHKOSH, Wisconsin, April 18 -- The Experimental Aircraft Association issued the following news release: EAA is looking for additional help this AirVenture as more than 750 temporary positions are available across multiple areas to be part of the World's greatest aviation celebration. EAA AirVenture will be held July 22-28, and is the world's largest annual gathering of aviation fans, with people visiting from more than 90 countries. These temporary positions are excellent opportunities for ma  more