June 22-25, 2015
Prague, Czech Republic
Hotel International Prague
FAA 14 CFR Part 25 Rulemaking for Flight in IcingRobert Hettman
FAA Transport Standards Staff
Federal Aviation Administration (FAA) On November 4, 2014, the Federal Aviation Administration published a final rule to expand the environmental icing conditions used for certification of new airplanes and engines that have been most affected by flight in icing. The expanded icing environment includes freezing drizzle and freezing rain, commonly referred to as supercooled large drops, or SLD; as well as glaciated and mixed phase icing conditions commonly referred to as ice crystals. This presentation provides an overview of the rulemaking package, the new and revised airworthiness standards, and the associated guidance materials that may be used to show compliance.