Well, the response I received from customer support was personalized and incredibly quick. I sent in a query and got a reply in less than a half hour! ^
Here's what they had to say about accessing aa.com-purchased itineraries (in addition to what is in the FAQ, emphasis mine):
Originally Posted by ExpertFlyer
Basically, we have no control over it. Our system asks the GDS for the PNR, if they can give it to us, great, if not, there is nothing we can do. The best thing to try is to go to the airline/TA who made the PNR in the first place and ask it to be made public. Our experience has been that AA.com bookings usually won't show up, frankly, I am surpised other people were able to see AA.com PNR's at all as it has been our experience during testing that this would not be the case. Maybe they were in some way different.
Thank you for your compliment, we have been trying hard to put together a service that would be a benefit to the community in ways the other makeshift tools out there couldn't. If you wish, you may pass this info along to the forums on FT, yes we do read them, and will always take good sugestions under advisement.
If you need further assistance please don't hesitate to ask.
Thank you,
The ExpertFlyer.com Team