It's been a year since a cabin door plug blew out of an Alaska Airlines Boeing 737 MAX in midair, and Boeing making improvements. Still, the head of the Federal Aviation Administration asserted that more work is needed.
Despite an onslaught of protocols to improve oversight of Boeing operations, Mike Whitaker, who will step down later this month, said in a blog post that "this is not a one-year project."
"What’s needed is a fundamental cultural shift at Boeing that’s oriented around safety and quality above profits.