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thewayneNot much to say, really. If something had caused the door to pop out and the bolts were in-place, these stop fittings are supposed to arrest the bolts' vertical movement. There would be evidence in those fittings of stopping the movement, either scratches or deformation or something.
And 'tweren't there.
"Overall, the observed damage patterns and absence of contact damage or deformation around holes associated with the vertical movement arrestor bolts and upper guide track bolts in the upper guide fittings, hinge fittings, and recovered aft lower hinge guide fitting indicate that the four bolts that prevent upward movement of the MED [mid exit door] plug were missing before the MED plug moved upward off the stop pads."
https://arstechnica.com/tech-policy/2024/02/four-bolts-were-missing-from-boeing-737-before-door-plug-blew-off-ntsb-says/
And 'tweren't there.
"Overall, the observed damage patterns and absence of contact damage or deformation around holes associated with the vertical movement arrestor bolts and upper guide track bolts in the upper guide fittings, hinge fittings, and recovered aft lower hinge guide fitting indicate that the four bolts that prevent upward movement of the MED [mid exit door] plug were missing before the MED plug moved upward off the stop pads."
https://arstechnica.com/tech-policy/2024/02/four-bolts-were-missing-from-boeing-737-before-door-plug-blew-off-ntsb-says/
