 Boeing has been on a hiring spree, adding thousands of new workers to make up for the experienced employees who left in droves during the COVID pandemic. The company says that lack of experience contributed to quality control problems, problems the company is now scrambling to fix after a door plug panel blew out of a relatively new 737 MAX in midair when a worker or workers in this factory failed to reinstall four key bolts that were supposed to hold that door plug in place.