Originally Posted by
Thruster763
I was second guessing myself and was correct the first time. This image of a DOOR shows the locking pins below the upper two striker plates which have the guide pin between them.
But it does look like the PLUG has bolts in a different location, possibly going into the guide pin.
And yet, both the door and the plug have roughly the same shape of frame -- and the frame is missing on the accident aircraft with at least the top four (out of twelve) bolts sheared off where it connects to the fuselage from the inside. Are those bolts the primary mechanism to keep the frame of the door/plug attached to the aircraft, or would you expect them to shear off?