Boeing CEO David Calhoun says that Alaska Air door-plug blowout doesn’t negate quality improvements the company has made on its 737 MAX jets since a pair of fatal crashes in 2018 and 2019. “Wasn’t the 737 line the most scrutinized product line in the word?” Bank of America analyst Ron Epstein asked Calhoun on a call to review Boeing’s financial results. “What happened to get to where we’ve gotten today?” Calhoun said quality on the 737 line has steadily progressed since the crashes and quality numbers have improved. “I think I understand your underlying context for the question but I take exception to the premise.”