United Airlines is finding loose fitting mounting bolts for the mid aft plug door 737-9 : r/boeing
By A Mystery Man Writer
United Airlines Confirms It Has Found Loose Bolts On Five Boeing 737 MAX 9 Door Plugs
Boeing, not Spirit, mis-installed piece that blew off Alaska MAX 9 jet, industry source says
United Airlines says they are finding loose bolts on door plugs of Boeing 737 Max 9 planes
Update on B737 MAX 9 - Operators and Regulators Response
The fuselage blowout on Alaska Airlines' Boeing 737 MAX 9: What we know
Alaska Airlines grounds 65 planes after hole torn open in one midflight
United Airlines found loose bolts on a grounded Boeing 737 Max 9
Gosh, The Boeing 737 MAX Is A Mess - One Mile at a Time
2 major airlines find loose bolts, other problems on grounded Boeing jets
United Airlines, Alaska Airlines find loose bolts on other grounded Boeing jets : NPR