Hundreds Of U.S. Flights Canceled As GPS-Based Aircraft Navigation System Fails

Hundreds Of U.S. Flights Canceled As GPS-Based Aircraft Navigation System Fails: A widespread impact to the GPS-based ADS-B navigation system used by aircraft to communicate location and flight status with the ground led to "hundreds or even thousands" of weekend flight cancellations in the U.S. and threatens to impact the start of the working week.