Damaged Boeing jet had missing bolts

NEW YORK CITY: Four of the bolts securing the panel of a Boeing 737 MAX 9 Alaska Airlines jet that blew off mid-flight last month were missing, according to a preliminary investigation published on Tuesday.

The National Transportation Safety Board’s (NTSB) initial report into the January 5 incident said the lack of damage or deformation around the holes “indicate that the four bolts that prevent upward movement of the [door] plug were missing before the plug moved upward off the stop pads.”