Australia’s Civil Aviation Safety Authority (CASA) will switch off nearly 200 ground-based navaids and start implementing global navigation satellite systems navigation (GNSS) for all aircraft operating in the country on or after May 26. Aircraft operating under IFR must be equipped with GNSS avionics enabling compliance with operations in RNP1 terminal areas, RNP2 on continental routes and RNP4 or RNP10 on oceanic routes. Read More at AIN Online