United Airlines announced Monday it found loose bolts during inspections of its Boeing 737 Max 9 fleet following Friday's Alaska Airlines incident in which a door plug blew out mid-flight.

P ORTLAND, Ore. — United Airlines said Monday it found loose bolts and other “installation issues” on a part of some Boeing 737 Max 9 jets that were inspected after a mid-flight blowout on a ...

Bolts in need of "additional tightening ... initial reports from technicians preparing its 737 Max 9 fleet for inspection indicated "some loose hardware was visible on some aircraft".

United said Monday it had "found instances that appear to relate to installation issues in the door plug -- for example, bolts that needed ... to the 737 MAX 9 aircraft involved in Friday's ...

"The fact that United has now found some aircraft with loose bolts, that just means that the investigation is going to be expanded." A diagram of the 737 MAX 9 door plug posted by the US National ...

FAA Administrator Mike Whitaker is being called on the carpet to explain the FAA's role in the Boeing 737 Max door plug ...

“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 ...

A Boeing 737 Max 9's fuselage door plug blew off mid-flight ... A preliminary investigation revealed that four bolts that were supposed to hold the door plug in place were missing, after the ...