International Civil Aviation Organization(ICAO), in a effort to ensure flight safety and
operations on scheduled flight of international civil aviation, establishes operational
procedures and technical standard for international aeronautical fixed telecommunication
network(AFTN) and ATS Message Handling System(AMHS).
In Japan, Fukuoka AFTN/AMHS Communication Center and Naha AFTN Communication Center are
established and Fukuoka performs as the core center of Asia region and operations by
FDMS(Flight Data Management System).
AFTN/AMHS, as a world-wide system, is connected between international airports, ATC facilities
and international airline companies, and exchanges vital information for aircraft operations
such as, flight planning messages, weather messages, NOTAMs and others.
Further, a variety of information concerning supplies of aircraft parts, fuel service, changes
of flight schedule etc. are also exchanged.
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