Originally Posted by
view-with-a-room
Manage the itinerary via the JAL website and determine the options. Generally speaking, JAL will allow changes to date / time in a 7 days either direction, but not the origin or destination. Ideally sort out the JAL flights and then call AA to sort out the AA flights and reissue the ticket. I suspect you will see options for ORD-FUK on the JAL site, but not NYC-FUK.
You can manage an AA issued award ticket via the JAL website? Really? The site didn't let me do that. And I was told by JAL that I needed to get AA to make any changes to their ticket. Fascinating.