ATC
GBAS not dead, despite FAA reversal
Boeing’s delivery in May of a 737-800 airliner certified for the global navigation satellite landing system (GLS) marked the culmination of a 10-year devel

Boeing’s delivery in May of a 737-800 airliner certified for the global navigation satellite landing system (GLS) marked the culmination of a 10-year development effort. It also served as a reminder that the ground-based augmentation system (GBAS) still has a future, despite a U.S. Federal Aviation Administration (FAA) decision last year to cancel production contracts for ground stations and reclassify the activity as a research and development project.