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Well, I KNEW this was a can of worms. The thread has been very
enlightening. Thanks. I did check with FSS one time, when I was getting a weather briefing, to clarify the legality of operations in forecast icing. He would not touch my question with a ten-foot pole. He essentially refused to answer. Now I see why. The article's at avweb, cited in this thread, make it clear that FAA and NTSB are at odds over icing rules. At the risk of re-starting a fire...does the generic line in weather reports saying that there is "generally the possibility of icing above the freezing level in clouds and perecipitation" mean that icing is ALWAYS forecast above the freezing level (assuming there are some clouds above the freezing level)? Or does that generic line not really count as a forecast? -Sami O. Sami Saydjari wrote: I KNOW this is a big can of worms, but I have a specific question relating to sub-paragraphs b.1 and b.2 of this regulation regarinding operating in icing conditions. It says "...no pilot may fly-- (1) Under IFR into konwn or forecast moderate icing conditions; or (2) Under VFR into known light or moderate icing conditions..." This seems odd. Why do you suppose the standards are different for IFR and VFR ("moderate" vs "light or moderate)? Icing affects a pilots ability to control the aircraft, so I do not see how instrument training allows one to venture into worse conditions. So, if there is an airmet for "light icing", then it is legal for an IFR pilot to enter the clouds (of course, on a valid IFR flight plan)? What perectnage of the time, during winter, do icing forecasts get issued whenever there are IFR conditions? In other words, in y'alls experience, if you get 100 briefings during the winter time that include IFR conditions, what perecntage of those will also have icing forecast. My intuition says that it will be upwards of 90-100% (I am a relatively new IFR pilot, so I do not have the experience base to say...looking for other opinions here). If it is close to 100%, should I just hang up my IFR certificate from Sept to May (I live in Wisconsin, so we only have about 30 minutes of summer here per year ![]() -Sami |
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