By providing a single code for all hail regardless of size, the FAA believes this will solve operators’ de-icing issues and preserve the climate record.
Flight manual revision offers distance reductions of up to 7 percent on takeoff and 4 percent on landing under hotter, higher, and/or heavier conditions.
FAA is seeking to determine if the mandate should be extended and what changes might be needed to the route structure, which is intended to reduce noise.