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delanotre : you should try and please report here
In CDG, if you manage to have an AF BP with the SkyP mention, you have a good chance to have Accès N°1/SkyP access for immigration and security. Indeed, several Skyteam airlines are departing from 2C and the PAF/PIF are now common between 2A and 2C (I believe EY in in 2A). Lounge access : you have nothing to loose to try, especially in CDG. As they say in a very famous French movie from the 70's: "vas-y fonce, oublie que t'as aucune chance. On ne sait jamais sur un malentendu ça peut marcher*"
* les bronzés font du ski