737 Flight Crew Operations Manual
Flight Management, Navigation -
Company Data Link
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
11.33.14 D6-27370-866-EGP
Navlink ACARS
YK996 - YW274
ACARS (Aircraft Communication Addressing and Reporting system) is a system
that provides for the transmission of digital data to and from aircraft via VHF, HF
and SATCOM subnetworks. These messages, referred to as uplinks and
downlinks, facilitate two-way communication for applications such as digital
ATIS, clearances, weather/turbulence reports, delay reports and free text
messaging with airline Dispatch and Maintenance. Other applications include
automated OOOI (Out-Off-On-In) reports, engine data reports, position reports,
gate assignment uplinks, and connecting gate uplinks, just to name a few.
Note: The following section describes the manufacturer provided ACARS
system. Each customers airplanes can be equipped with a dedicated
company ACARS system that may differ from the following pages.
YK996 - YQ456
The CMU 900 system can include three software applications: the Airline
Operational Control (AOC), Air Traffic Services (ATS), and the Technical
applications.
YW273, YW274
The CMU 900 system can include four software applications: the Controller/Pilot
Datalink Communication (CPDLC), Airline Operational Control (AOC), Air
Traffic Services (ATS), and the Technical applications.
The Navlink portion of the Airplane Communication Addressing and Recording
System (ACARS) provides upload and download capability for preflight and in
flight information.
YK996 - YQ456
Navlink ACARS access is gained by selecting the ACARS prompt on the MENU
page. This temporarily suspends the FMC functions of the CDU and allows the
CDU to be used by the Navlink ACARS system.
YW273, YW274
Navlink ACARS access is gained by selecting the DLINK prompt on the MENU
page. This temporarily suspends the FMC functions of the CDU and allows the
CDU to be used by the Navlink ACARS system.
September 15, 2016
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