WEST MIFFLIN, Pa. Kennywood’s Phantom Fall Fest, voted one of USA Today’s 10Best Theme Park Halloween Events, comes out of the shadows for six terrifying weekends of spooky fun beginning Friday, September 22. The park is now accepting applications, looking to fill more than 250 positions, to bring the frights to lifeduring Kennywood’s 125th Celebration season. In all, Phantom Fall Fest features seven…