NTSB investigators have made multiple visits to Boeing facilities and created a special team to handle requesting and processing documents from Boeing and its key ... on the door plug bolts.

In response, the FAA grounded the Max 9 for nearly a month and halted Boeing's production expansion of the 737 Max. Four bolts appeared to be missing on a door plug that blew off from a Boeing 737 ...

Apreliminary federal report found that the door plug appeared to have been removed and then reinstalled at a Boeing factory without four bolts needed to keep it attached. That and other revelations ...

Several bolts were missing from a door plug that blew out mid-flight from an Alaska Airlines Boeing 737 Max 9 plane in January, a preliminary report from the National Transportation Safety Board ...

Perhaps the most inflammatory action was Boeing’s framing of the ongoing investigation to identify how and why four bolts which would have prevented the door plug from coming loose were not ...

The outgoing U.S. transportation secretary said on Monday that Boeing has more to do and its efforts to improve its culture are unfinished after a door panel missing four key bolts flew off a new ...