Preliminary NTSB report on Boeing 737 Max 9 Alaska Airlines flight released

CBS News - For more and to sign up click here Preliminary NTSB report on Boeing 737 Max 9 Alaska Airlines flight released - CBS News Watch CBS News Four bolts meant to hold the Boeing 737 Max 9 door plug in place were missing last month when part of a plane blew out on an Alaska Airlines flight, the National Transportation Safety Board found in a preliminary report released. Here's a breakdown of what else the…