I got a LAX-JFK flight (AA flight # , AA operated) as part of international flights.
The tickets were issues by AY (105 stock).
In this case can I apply BXP1 to the AA segment?
I tried to pull the reservation with AA record locater to upgrade the seat at business.aa.com, but it says "Only American Airlines PNRs are eligible for seat upgrade.", and I can't go further from there. By the way the booking class is I.
It is AA's PNR from aa.com and not AY's PNR, though...