Originally Posted by
che ci dō che ci dō!
"... certification standards provide protection for the majority of atmospheric conditions encountered, but not for freezing rain or freezing drizzle or for conditions with a mixture of supercooled droplets and snow or ice particles...."
does any of you know in which part of JAR 25 one can find the above mentioned limitation? I couldn't find it.
Thanks
I think you'll find Appendix C quite enlightening.
14 CFR 25 App C is basically harmonised, and available online.
Generally, most kinds of freezing rain (and indeed SLD also) lie outside the defined limits for continuous maximum and intermittent maximum icing in Part I. Since this is what defines the icing certification under 25.1419 etc., it follows that it's outside the cert limits for any aircraft.
Appendix "X", still under development, is supposed to define icing conditions outside the App C. envelopes. Don't hold your breathe.