Test your mechanical skills in an aviation version of the classic Milton Bradley game "Operation" and win cash from Stevens Aviation, Booth 2721. Dexterity will pay off for contestants who can remove parts from a mock aircraft in 60 seconds. Participants can win up to $140 in cold, hard cash. "This is a great way to entertain our guests while underscoring the importance of maintenance expertise," says Stevens sales and marketing vp Jim Amador.