User's Manual

UniLink UL-800/801 FANS
SCN 30.X
Operator’s Manual
10 23-20-06.02
December 2011
ATC RPT READY – Indicates that the necessary conditions for
sending a CPDLC report downlink previously requested by ATC have
been met. If a single report is ready to be sent, and all the data
required by that report is available, selecting the advisory will display a
review page from which the report may be sent. If a single report is
ready to be sent, and some of the data required by the report must be
entered manually, selecting the advisory will display a message
composition page on which the required data may be entered. If
multiple reports are ready to be sent, selecting the advisory displays
the ATC RPTS page, which contains a log of all ATC report requests
that have not yet been fulfilled. From this page the desired report
request can be selected, and the appropriate review page or message
composition page will be displayed.
Once selected, this advisory is dismissed until another requested
report becomes ready to send. It does not remain active until a report
has been sent.
NOTE: UniLink’s ability to detect REPORT PASSING events is
limited. UniLink can detect the passing of a flight plan
waypoint but cannot detect the passing of an arbitrary pair of
lat/lon coordinates or a given latitude line or meridian. The
pilot retains responsibility for monitoring the situation and
sending requested reports when necessary.
ATC CNCT XXXX – Indicates that a new Air Traffic Service Unit
(ATSU) has become the aircraft’s current ATC data authority. The
ICAO code (XXXX) of the ATSU is included in the advisory. This
advisory is informational; it is dismissed when selected and requires
no further action.
ATC DISCNECT – Indicates that the aircraft no longer has a current
ATC data authority. The connection with the aircraft’s current ATC
data authority has been lost, and there is no next data authority to
take its place. This advisory is informational; it is dismissed when
selected and requires no further action.
ATC LOGON FAIL – Indicates that an attempted AFN log on has
failed, either because a negative acknowledgement was received from
the ATSU or because no acknowledgement was received within ten
minutes of the transmission of the AFN log on downlink. Selecting this
advisory displays the ATC LOG ON page, where the status indication
above the LOG ON prompt at LSK [3L] indicates the reason for the
failure (ERROR or TIMEOUT).