"Alaska Airlines CEO Demands Boeing Tighten Quality Checks on Max 9 Planes"

Alaska Airlines CEO Ben Minicucci expressed anger and frustration at Boeing after a 737 MAX 9 plane lost a door plug mid-flight and loose bolts were found on several inspected jets, demanding improvements in Boeing's quality programs. The airline has added its own oversight on the production line at Boeing and is sending audit people to ensure excellence and quality. The FAA is investigating Boeing's manufacturing practices and production lines following the incident.