Flying LAX-AMS-LIN and I have lounge access. I'd much rather use the non-Schengen 52 lounge. I see above that one can use it but we should factor time for passport control to catch the Schengen flight.

I wondering when we exit the aircraft from the US into the terminal, are we in the non-Schengen departure area so that we can just walk to the 52 lounge or are we "forced" to exit the non-Schengen area.

A side question, do the KL lounges have service desks? I'm going to ask if I can change my cumbersome AMS-CDG-LIN itinerary to a AMS-LIN one on the day of travel.