New RNP Procedures Lower Decision Heights, Visibility
Requirements
A study of airspace around Sun Valley Airport has identified
significant improvements in airport access that could be achieved
during periods of inclement weather with the deployment of new,
advanced instrument approach procedures. The study, conducted by
GE, found that new procedures, using Required Navigation
Performance (RNP) technology, would allow Bombardier Q400 passenger
turboprops to operate at Sun Valley on days of low ceiling and
visibility that currently force diversions and cancellations.