Is Pilot a transient Crewmember?

There is a certain amount of time set by the CBP to determine if a travel leg has ended. FOS is programmed to check if the crew member is within that time period before he flies back out of the US. That means not clearing customs and either staying on the aircraft on in the transit lounge of the airport.

The meaning of the question is. If the pilot a transit crew member or is he clearing US Customs.