United Airlines finds loose bolts on door plugs on several 737 Max 9 planes following Alaska Airlines mid-air door blowout incident
United Airlines finds loose bolts on door plugs on several 737 Max 9 planes following Alaska Airlines mid-air door blowout incident

United finds loose bolts on door plugs on several 737 Max 9 planes following Alaska Airlines mid-air door blowout incident

If it was just a few, they would have confirmed how many
I doubt they would confirm before they had tested every bolt on a few planes
Or at least one, testing every bolt, or at least this bolt on a bunch of them
But they would need a sensitive tool to measure torq needed to unlock it that’s kinda cool
Loose bolts indicate vibration, and that is a death knell for Boeing ... because their engineers should have known how many bolts would be needed and the torque required to lock them in.
Boeing will pay through the nose for this screw up.
Generally in Aviation, bolts are torqued down to a spec and then they are wired to prevent them from coming loose. I’m not an engineer but this happening on soo many planes looks like a manufacturing QC problem.