Originally Posted by
moondog
I haven't booked a JL flight via BA in a while, but for AA ticketed JL reservations, I usually get a separate PNR to use on JAL's website:

Yes because aa is on sabre so there is an Amadeus PNR if the booking involves airlines on Amadeus such as ba or JAL. Ba is on Amadeus so there is no need for another PNR for JAL.