Hi
I do seem to remember on a flightsafety int operational procedures recurrent the instructor telling us that US Customs (not the FAA) needed prior notice before arrival into the US of any intended airports likely to be used WITHIN the US for a foreign registered aircraft. I.E not just the first port of landing.
Also, the 'feds' wanted to know all possible crew and pax names and passport details along with the aircraft's registered owner(s) and usual cargo. I will try to fish out the references from the fsi manuals if time permits.