FAA NEW RULE ON ICING
FAA issues final rule on icing certification
Kylie Bull, London - IHS Jane's Airport Review
12 November 2014
Icing certification standards in the United States now have a broader scope, after the Federal Aviation Administration (FAA) issued a final rule on 3 November 2014.
The rule was originally proposed in June 2010.
The updated standards require US manufacturers to prove that aircraft can operate safely in freezing drizzle or freezing rain - these conditions lead to the icing environment known as 'supercooled large drops' (SLD).
The new standard also includes ice crystal weather conditions. Pilots usually encounter ice crystals, which can clog external air data sensors or lead to ice build-up in an engine, while they are flying around thunderstorms.