ANZEIGE
Quelle: https://www.reddit.com/r/aviation/comments/190ig8p/comment/kgp2nva/here is a video that goes into details on the door and what can go there.
The idea behind it is the hole in the fuselage can be filled with a functioning door, a disabled door or with a plug. If a plug is fitted, the airline can choose to retrofit a door later. (It’s expensive, but not impossible)
When a door is fitted, the door needs to move up before it can rotate down to clear some fittings.
When a plug is fitted, there are some structural modifications so that no cabin space is intruded upon, but it still uses some of the normal door structure.
In the video I linked, the main holding bolts are highlighted at ~24:44, (Total of 4 is mentioned) and shows the plug in a partially open position
What looks like ~ a dozen fasteners in OP’s photo, look more like pressure bearing surfaces that have to be cleared vertically first before the plug can hinge down.
Aus der gleichen Quelle stammt auch dieses Bild; Überschrift: Boeing Max-9 door being inspected right now. This is not an Alaska Airlines aircraft you are seeing.
Verstehe ich es richtig*, dass jede MAX9 die Möglichkeit hat, diese Tür eingebaut zu bekommen und wenn der Kunde das nicht bestellt, das Loch einfach "zugetackert" wird?
*ich habe das Video noch nicht komplett geschaut, sorry - und irgendwann bin ich auch raus bei der Technik etc.