The FAA currently supports both ground- and satellite-based instrument approach procedures (IAP) totaling over 12,000 approaches—roughly double the number from 10 years ago. That many approaches are costly and require excessive resources to maintain.
To reduce costs in transitioning to NextGen, the FAA quickly targeted many instrument flight procedures as low-hanging fruit. This requires a delicate balancing act because continuity of National Airspace System (NAS) safety must be maintained. Let’s look at policies the FAA adopted when considering whether to cancel an IAP.