A National Transportation Safety Board preliminary report released Tuesday found that a Boeing 737 MAX 9 plane’s door plug had four critical bolts missing before a Jan. 5 blowout. Photo ...

“The NTSB will be coordinating with the DOJ Fraud Division to provide details about Boeing's recent unauthorized investigative information releases in the 737 MAX 9 door plug investigation ...

Boeing is redesigning the fuselage component that blew out of a nearly new 737 Max 9 aircraft ... so-called door plug from being closed until it’s firmly secured, after the NTSB found the ...

Several bolts were missing from a door plug that blew out mid-flight from an Alaska Airlines Boeing 737 Max 9 plane in January ... during the incident. A full NTSB report is still in the works.

The NTSB's latest findings ... Four bolts should have kept the left door plug secure to prevent it from moving upwards and disengaging from the Boeing 737 Max 9, National Transportation Safety ...