Feldschlösschen could be it. Still, what about the memory I have about "Donauschlingen"? Does that make sense?
In respons to the suggestion that the beer was be Quöllfrisch I am not so sure on this specific flight ZRH-AJA.
In addition, my wife remindend me about that my travel ARN-ZRH-AJA was in 2002 (Changed in the start of this thread today). Sorry.
But what about the metal operating ZRH-AJA at the time aug 2002? Ideas?