De-icing
They had some stormy weather in Scandinavia yesterday with thunder, lightning & hail. When I drove to the airport the rain & hail had frozen to the road making it particularly tricky. In the morning my rental car still had ice all over, as was the road.
I took an early flight from a Scandinavian airport this morning and whilst we were at the gate I noticed that the wings had some light frost on the top. The aircraft type was a B737 500. It didn't de-ice.
The air temp. at 6.30am this morning was +2 degC.
Is de-icing not so critical on this aircraft type or is frost not considered an issue in any case?
Do the scandinavian based airlines not de-ice as frequently as other carriers because they are more familiar with icing?
Obviously the frost wasn't an issue in this case (or I wouldn't be writing this) but I was just curious.