Flying CDG-LHR on BA in Y for an onwards connections on AA in F. First flight is on one ticket. Second flight is on a second ticket. Both are e-tickets.

Will BA be able to issue the AA flight boarding pass?

Will BA lounge dragon allow admittance to CDG Terraces based upon the OneWorld lounge access policy?

Customers flying First or Business Class have access to the equivalent class of lounge regardless of their frequent flyer status. Customers flying in Economy class on the domestic or intra-European segment to connect to or from a oneworld longhaul First or Business Class flight can also use the lounge applicable to the class in which they are travelling the longhaul segment. Access is available on the day of departure when your next onward flight is with a oneworld member airline. Access may be restricted at a limited number of third-party-operated lounges or due to capacity constraints. Arrivals Lounges are not part of the oneworld lounge policy.