Causal
medium strength
Narrative Connection
How these two moments in the story relate
From
Doctor abruptly departs flight deck
S19E23
·
Time Flight Part 1
To
Doctor warns of Concorde time warp
S19E23
·
Time Flight Part 1
Why These Connect
The narrative assertion
"The Doctor's proposal that Victor Foxtrot 'experienced a time slip' directly leads to his later confirmation that they've flown into an actual time contour when the TARDIS shifts."
About Causal Connections
A directly causes B. The first event sets forces in motion that produce the second. These are the load-bearing connections of plot--remove one and the story structure collapses.