The implementation of GNSS is precipitating the removal of certain ground based navigation aids. IFATCA is concerned that as these GNSS systems are subject to natural temporary degradation and unserviceabilities that there should not be a reliance on a sole means navigation system.
IFATCA Policy is:
Until failsafe procedures have been proven and installed, the removal of terrestrial navigation aids is neither feasible nor safe and would therefore be highly premature, and that adequate navaids should be guaranteed.
|See: WP 98 – Santiago 1999|
Last Update: September 29, 2020