United Airlines has found loose bolts and other parts on 737 Max 9 plug doors as it inspects its fleet of Boeing jets following the Friday rapid depressurization aboard an Alaska Airlines jet of the same make, according to three people familiar with the findings.
Not enough information to identify if it’s a torque issue or not. And yes, I would expect that chassis testing would have included that, but Boeing has had a bad track record, recently, around POC / implementation testing. Cutting corners to eek out them quarterly dividends and look good to investors by keeping on an arbitrarily chosen schedule.