April 2017 - I was able to exit concourse D and use the Club America lounge on airside F with Priority Pass. Pretty skimpy lounge in terms of food (stale cookies, bready sandwiches, chips/salsa). Downside is there is no TSA-pre entering concourse F (they will hand you an expedite card however), so you take your chances with the lines. But as for procedure, all I did is show my ticket to security and pass normal security screening for airside access to concourse F.