Avionics
More Requirements Coming for North Atlantic Track Users
Aircraft will need to be equipped with FANS 1/A, controller-pilot datalink communications and ADS-C to fly on the NAT between FL350 and FL390 inclusive.

 Operators accustomed to flying in the high-level North Atlantic Tracks (NAT HLA) will soon face additional compliance requirements with the March 29 implementation of performance-based communication and surveillance (PBCS) standards between FL350 and FL390 inclusive.