Originally Posted by
FlyFreakquently
JetBlue's IT is pretty poor when it comes to recognizing AA Elite benefits. You'll be fine. The agent at the check-in desk will be able to see you're an AA Elite and check your bags
Many thanks to all for the quick replies. Turns out I stressed myself out too soon - boarding pass has now updated to remove the "no carry on" designation, and trip details have changed from 0 carry on allowance to 1 carry on allowance. All good.