Originally Posted by Efrem
Not directly, but it's my understanding that I can transit Europe (London in this case) en route from Africa to North America if I don't stop over...
Yes, you can, but ONLY in this, very limited, case:
38N . C. 2 PERMITTED IN EUROPE TO/FROM/VIA
39N . GHANA/NIGERIA. 1 MUST BE A TRANSIT WITHOUT
40N . STOPOVER BETWEEN GHANA/NIGERIA AND ANOTHER
41N . CONTINENT.