Originally Posted by
tjcxx
I have heard Finnair's website has been altered and it's often not possible to select seats. The current advice is to go to Royal Jordanian's or Malaysian's websites. You will need the Finnair booking reference, not the AA PNR. It should be shown in the detail of your booking on aa.com.
...or enter the AA PNR on the Qantas "Manage My Booking" to display the PNR that AY uses.