Theongoing strike at aircraft manufacturer Boeing Co (NYSE:BA) may last long, as workers demand higher wages and improved pension plans, International Association of Machinists and Aerospace Workers (IAM) union leader Jon Holden reportedly said in a recent interview. What Happened: More than 30,000 aircraft assembly workers walked off the job early Friday morning after a majority rejected a contract offer presented by Boeing that would have boosted wages by 25% over four years. The striking machinists produce the 737 Max, Boeing’s top-selling airliner, the 777 jet, and the 767 cargo plane. “I …