Originally Posted by
Jicko
You will not be arriving in TBIT (most of the time), and you will be arriving in LAX terminal 4 and clearing custom there.
That's not completely accurate.
The Federal Inspection Facility in T4 was closed several years ago. Currently, international AA passengers arriving at LAX deplane at gates 41 or 43 in T4 and walk through the tunnel to TBIT where they clear immigration and customs.