Boeing's 737 MAX 9 planes have begun to fly again after the January 5 Alaska Airlines scare, but the episode is expected to weigh on the aviation giant's finances for the foreseeable future.
Both Alaska and United Airlines resumed service on the MAX 9 over the weekend following a three-week grounding after a panel blowout necessitated an emergency landing. The incident has heaped scrutiny on Boeing and CEO David Calhoun.
