FAA Publishes RNP Advisory Circular

A draft version of advisory circular (AC) 90-105A published by the FAA’s Flight Standards Division provides required navigation performance (RNP) guidance for operators conducting Part 97 instrument approach procedures, as well as barometric vertical navigation (Baro-VNAV) operations. The document applies to all operators conducting RNP approaches, RNP 1 departure procedures (DPs), RNP 1 standard terminal arrivals (STARs), RNP 2 en route domestic and operations in oceanic and remote continental RNP 2, RNP 4, and RNP 10 airspace.