They got paid, so there ain’t nothin’ else to think about
By 
Another report that is incredibly damning of Boeing:
The investigation into the midair blowout of a fuselage door plug on Alaska Airlines Flight 1282 on Jan. 5 has confirmed that four bolts that should have kept the door plug in place were missing when Boeing delivered the aircraft, the National Transportation Safety Board said Tuesday in a preliminary report on the incident.
“Four bolts that prevent upward movement of the mid exit door plug were missing before the mid exit door plug moved upward off the stop pads,” the report states.
The NTSB said the door plug was opened at Boeing’s Renton factory so a team from supplier Spirit AeroSystems of Wichita, Kan. could repair damaged rivets adjacent to the door plug on the 737 MAX 9 jet.
The fix required removal of insulation and sidewall at that location and the opening of the door plug. After the rivets were repaired, a Boeing team worked to restore the interior.
A month after the blowout, though, Boeing has not provided the NTSB with documentation about who opened and re-closed the door plug, how exactly it was done and with what authorization.
“The investigation continues to determine what manufacturing documents were used to authorize the opening and closing of the left mid exit door plug during the rivet rework,” the NTSB report states.
I wouldn’t say that the penultimate paragraph in particular inspires much in the way of confidence. But the Jack Welch school of business cannot fail, it can only be failed. You can’t maximize CEO pay without having a few doors fly off or planes involuntarily crashing!