737 Flight Crew Operations Manual
Flight Management, Navigation -
FMC Messages
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11.60.36 D6-27370-866-EGP
Navlink ACARS Messages
YK996 - YW274
Navlink ACARS Advisory Messages
Advisories are shown on the CDU next to L6 and R6. They signal the crew that
either a condition requires attention or that a function is available. Typically a
crew action extinguishes the advisory.
ALERTING MESSAGE CAUSE CORRECTIVE ACTION
PARTIAL
CLEARANCE
LOADED
FMC able to load only a
portion of data.
Clear message and reject
uplinked clearance.
RE–LOGON TO ATC
COMM
No response to logon
message after 10
minutes.
Clear message and
re-send logon message.
RESPOND TO ATC
UPLINKS
ATC uplink pending
storage full.
Clear message and
respond to open uplinks.
UNABLE TO LOAD
CLEARANCE
FMC unable to load any
data from uplink.
Clear message and reject
uplinked clearance.
UNABLE TO SEND
MSG
Manual initiation of
downlink failed.
Clear message.
ACTIVE ADVISORY CAUSE CORRECTIVE ACTION
CONFIG Airline ID or the
Registration Number is
not available to the
CMU-900.
Advise maintenance.
BAD ACTYPE Improper aircraft type
loaded.
Advise maintenance.
APM ICAO Aircraft Personality
Mode (APM) status is
INDETERMINATE
because of an (ICAO)
address conflict between
the APM and the
transponder broadcast.
Advise maintenance.
SELCAL Voice go–ahead uplink
message received.
Selected SELCAL page
or select voice mode.
September 15, 2016
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