This is probably the one you're thinking of: "The Embraer EMB-505 Phenom 300, for instance, entered service in 2009 and has since become the world’s best-selli

This is probably the one you're thinking of: "The Embraer EMB-505 Phenom 300, for instance, entered service in 2009 and has since become the world’s best-selling light jet. In 2016, the FAA warned that if the Phenom 300 encountered an unreliable or unavailable GPS signal, it could enter a Dutch roll (named for a Dutch skating technique), a dangerous combination of wagging and rocking that could cause pilots to lose control. The FAA instructed Phenom 300 owners to avoid all areas of GPS interference."