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December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
5.34.4 D6-30151-425
Communications -
Company Datalink
3 Company (CO) ROUTE
Valid entry is a company route request identifier. The identifier need not be in the
navigation data base.
Deletion invalidates company route request and resets downlink request status to
SEND.
December 01, 1999
747 Operations Manual
Communications Chapter 5
EICAS Messages Section 40
Copyright © The Boeing Company. See title page for details.
D6-30151-425 5.40.1
Communications EICAS Alert Messages
The following EICAS Alert messages can display.
ACARS
SATCOM and SATCOM Data Mode
SATCOM Voice Mode
Message Level Aural Condition
>DATALINK
AVAIL
Advisory ACARS capability reestablished after a
temporary loss.
Message Level Aural Condition
>DATALINK
LOST
Advisory ACARS not available due to lost
communications.
Message Level Aural Condition
>DATALINK SYS Advisory ACARS has failed and is not available.
Message Level Aural Condition
>SATCOM Advisory SATCOM has failed and not available.
>SATCOM DATA Advisory ACARS data communication through
SATCOM system not available.
Message Level Aural Condition
>SATVOICE
AVAIL
Advisory SATCOM voice capability reestablished
after a temporary loss.
>SATVOICE
LOST
Advisory SATCOM voice capability temporarily
lost due to a reason other than SATCOM
system failure.
Message Level Aural Condition
>SATCOMVOICE Advisory SATCOM voice communication not
available due to SATCOM voice system
failure.
April 01, 2001
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
5.40.2 D6-30151-425
Communications -
EICAS Messages
Communications EICAS Memo Messages
The following EICAS Memo messages can display.
ACARS
ATC
SATCOM Voice Mode
FMC Messages
For FMC Message information, refer to Chapter 11.60.
Message Condition
ACARS
MESSAGE
Crew required to access ACARS on CDU
or when a message has been received for
viewing on the CDU.
PRINTER
MESSAGE
ACARS message printing.
VHF DATA OFF VHF C radio in voice mode and not
available for ACARS data communication.
Message Condition
ATC MESSAGE ATC uplinked message received.
Message Condition
SATCOM CALL Ground-to-air voice call received.
SATCOM
MESSAGE
Information of voice call status available
on CDU SATCOM pages.
April 01, 2001
747 Operations Manual
Electrical Chapter 6
Table of Contents Section 0
Copyright © The Boeing Company. See title page for details.
D6-30151-425 6.TOC.0.1
Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.10.1
Electrical Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.10.1
Standby Power, Battery, and Utility Bus Controls. . . . . . . . . . 6.10.2
APU Generator and External Power Controls. . . . . . . . . . . . . 6.10.4
AC Bus and Generator Controls . . . . . . . . . . . . . . . . . . . . . . . 6.10.5
OverheadMaintenance Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.10.7
Generator Field Manual Reset and Split System
Breaker Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.10.7
Electrical Synoptic Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.10.8
Battery Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.10.10
SystemDescription . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.20.1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.20.1
AC Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.20.1
Electrical LoadManagement and Load Shedding. . . . . . . . . . 6.20.1
AC Electrical SystemPower Sources . . . . . . . . . . . . . . . . . . . 6.20.1
AC Electrical Power Distribution . . . . . . . . . . . . . . . . . . . . . . 6.20.3
AC Standby Power System . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.20.6
AC Standby Power System Schematic . . . . . . . . . . . . . . . . . . 6.20.8
AC Standby Power System (AC Bus 3 Unpowered) . . . . . . . . 6.20.9
AC Standby Power System (AC Busses 1 and 3
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