If memory serves, while *G/EBS, traveling with husband (EBS):
December 2006 - CPH-IAD -From Y to C at check-in (oversold flight in Y)
April 2006 - CPH-IAD - From Y to C at gate (oversold flight in Y)
In 2004/2005 - a couple of op-ups at gate from Y to Y+, CPH-SEA and CPH-EWR, and once to Y+ on the UA wetlease CPH-IAD
Susan