Originally Posted by Mehdron
That's the one I knew of. OSL used to be the city code (for either airport), when FBU closed they assigned it just to Gardemoen. I guess FBU was pretty hemmed in.
Fornebu couldn't expant the runway to the necessary 11,ooo feet for 747 service, nor could they get past the wealthy NIMBYs under it's landing patterns in Bigdoey, Frogner nor Baerum