the rumor says, that the lawyers of AVINOR recommends that the Norwegian airports use the term : "xxxxx contamination ON ICE", when there is the slightest presence of ice.
This is to be sure no company can come after AVINOR if an accident happens.
As operators in Scandinavia knows, there have been quite a few incidents over the years in Norway, where the reports from the airports about contamination/B.A. have been incorrect (actual B.A. most worse than reported)
Problem is operators of Airbus are not allowed to operate on ice covered runways (> 25 %)
so this is a problem that has to be solved