Avionics
ICAO Bulletin Caps NAT Region Datalink Altitude
The new cap on NAT Region datalink mandate altitude will help operators of older business jets that can climb above FL410 before entering NAT airspace.

A recently issued ICAO North Atlantic Systems Planning Group NAT OPS Bulletin revises the North Atlantic datalink mandate, putting an upper limit of FL410 on operations in the North Atlantic Track (NAT) region starting Jan. 30, 2020. Datalink (generally FANS-1/A equipment) is now required from FL350 to FL390 in the NAT region, and until this bulletin (revision 4) was released and became effective on July 9, there was no cap on the altitude.


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