UPVC door with butt hinge with single screw

[Himal]

My main door UPVC door butt hinge has single screw that is connected to the main door panel. Due to the strong wind, the door slightly tilted from the top. I want to align it by tightening the screw at the top but cannot find anywhere how the screw is connected to the main door.

Appreciate your advise on how this door can be aligned.

Some pictures as attached

 

[crank39]

You knock the main hinge pin up to split the 2 halves and then pull the door separating the halves and turn the centre part in or out depending which way you want to force the door to go, then rebuild

 

[RandomGrinch]

@crank39 , is that crack in the frame anything to be concerned about?

 

[Himal]

@crank39 , is that crack in the frame anything to be concerned about?

View attachment 315938

Yes, the something needs to be done to the crack also soon. There are 4 hinges in the door to support the panel, so the door is still is still securely attached guess.

 

[crank39]

Well spotted RG, I was replying from my phone while up some scaffolding so didn't see it, ideally it shouldn't be there but the pvc is double skinned so hopefully just the outer skin and as said 4 hinges so it'll be ok, its an old door anyway with that type of hinge bordering prehistoric