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Air Traffic Control Datalink
For airplanes with the Air Traffic Control (ATC) datalink function installed, these
functions are accomplished on the CDU. These functions include Air Traffic
Services Facilities Notification, Automatic Dependent Surveillance (ADS), and
ATC Datalink.
The ATC LOGON/STATUS page provides the capability to initiate an AFN
downlink to a specified ATS facility and to display the ADS, ATC DL, and
datalink status.
THE ATC UPLINK pages display messages uplinked by an ATS facility and
provide the capability to respond to uplinked messages and to load clearances
which contain loadable data.
The ATC REQUEST pages provide capability to create downlink requests for
vertical and speed clearances, lateral offsets, and route changes.
The FMC formats reports in response to requests from an ATS facility for reports
and confirmation. These reports are accessible via the ATC REPORT page and
display for review or modification on the VERIFY REPORT pages.
The ATC LOG page provides a list of all uplinks and downlinks stored in the ATC
Log and provides access to the XXXXz ATC UPLINK, XXXXz ATC REQUEST,
XXXXz ATC REPORT, and XXXXz EMERGENCY pages corresponding to
each logged uplink or downlink.
To accomplish Automatic Dependent Surveillance, the FMC can simultaneously
receive requests from four ATC centers and one airline center. Airline ADS
addresses are stored in the airline policy file. The ADS functions include periodic,
event, and on-demand reporting. The type and content of a report is initiated by
uplink request. These functions are automatic. The flight crew can disable this
function on the ATC LOGON/STATUS page.
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
5.33.2 D6-30151-425
Communications -
ATC Datalink
ATC Index Page
The ATC INDEX CDU page provides access to pages used for ATC datalink
functions.
1 EMERGENCY
Push - displays EMERGENCY REPORT page.
2 REQUEST
Push - displays ATC REQUEST page.
3 REPORT
Push - displays ATC REPORT page.
4 LOG
Push - displays ATC LOG page.
- -- --- --
<
- -- --- -- --- -- ---
< EM ERG ENC Y P O S R >
ATC INDEX
< RE QUE ST
O R T
E P O R T
< RE P
<
< LO G
LO GON /ST AT US V O I C E >
E >
W H E N C A N W E >
C L E A R AN C
PR INT LO G
<INDEX
ATC PAGES (7)
EMERGENCY REPORT
ATC REQUEST
ATC REPORT
ATC LOG
ATC LOGON/STATUS
WHEN CAN WE EXPECT
VERIFY REQUEST
1
2
3
4
5
7
8
9
10
6
December 01, 1999
747 Operations Manual
Communications -
ATC Datalink
Copyright © The Boeing Company. See title page for details.
D6-30151-425 5.33.3
5 LOGON/STATUS
Push - displays ATC LOGON/STATUS page.
6 PRINT LOG
Push - transmits contents of ATC log to printer.
7 Position (POS) REPORT
Push - displays POS REPORT page.
8 WHEN CAN WE EXPECT
Push - displays WHEN CAN WE EXPECT page.
9 CLEARANCE
Push - displays VERIFY REQUEST pages for clearance request.
10 VOICE
Push - displays VERIFY REQUEST page for voice contact request.
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
5.33.4 D6-30151-425
Communications -
ATC Datalink
Emergency Report Page
The EMERGENCY REPORT pages provide the capability to create downlink
messages to alert an ATS facility to an aircraft emergency and to the lateral and
vertical maneuvers the flight crew intend to execute.
<
--- --- -- --- -- --
>
- --- -- -
EM ERG EN CY R E P O R T
< A Y P A N
S O B
3 9 5
M A Y D
<
T
D
O F F S E F U E L R E M A I N I N G
- -- 1 6 . 5 K G 0 4 + 2 5
--
I V E R T T O
D E S C E N D T O
K S E A
1 4 0 0 0
<
<
ER ASE EMERGENCY
IN DEX V E R I F Y>
ATC INDEX
<EMERGENCY
VERIFY EMERGENCY
<EMERGENCY
(hold down) ATC
Exists
Connection
ATC
YES
2
3
6
7
10
1
9
8
4
5
April 01, 2001
747 Operations Manual
Communications -
ATC Datalink
Copyright © The Boeing Company. See title page for details.
D6-30151-425 5.33.5
1 MAYDAY
Push -
• displays VERIFY EMERGENCY page
• displays MAYDAY MAYDAY MAYDAY message
• when current altitude more than 150 feet above altitude in 4L, displays
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