Jet Aviation Basel has been approved to upgrade enhanced ground-proximity warning systems on the Learjet 31, 35, 36, 55 and 60 series with Honeywell’s runway awareness and advisory system software. Avcon Industries has upgraded 15 Latin American Learjet 20s for reduced vertical separation minima (RVSM), with five more systems on order. RVSM was introduced across the Americas in January.

Source: Flight International