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.
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.
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.