Pictures obtained from Boeing show that the door plug was then closed without bolts in three locations visible ... a control plan to ensure that all 737 Max 9 door plugs are installed according ...
Four bolts should have kept the left door plug secure to prevent it from moving upwards and disengaging from the Boeing 737 Max 9, National Transportation Safety Board Chair Jennifer Homendy said ...
United Airlines and Alaska Airlines found loose bolts ... door plug, but they are expected to focus on the manufacturing processes at Boeing and Spirit AeroSystems. Spirit makes the body for the ...