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CTR, PLAN
Displays reference point
selected on CDU FIX page.
Bearing and/or distance
from the fix are displayed
with dashes (G).
FMC-IRS position
update status (G)
MAP, MAP
CTR
Displays FMC-IRS status
based on IRUs. Transition
from IRS (3) to any other
annunciation highlighted
by a green box for 10
seconds.
FMC-radio position
update status (G)
MAP, MAP
CTR
Displays FMC-radio update
mode. DD, DME DME;
VD, VOR DME; LOC,
localizer; LOC DD,
localizer and DME DME;
LOC VD, localizer and
VOR DME.
FMC-GPS position
update status (G)
MAP, MAP
CTR
Displays FMC-GPS update
mode. LOCGPS, localizer
and GPS; GPS, GPS, GPS.
GPS position (W) MAP, MAP
CTR
Displays GPS position
relative to FMC position
when POS switch selected
on.
IRU positions (W) MAP, MAP
CTR
Displays IRU positions
relative to FMC position
when POS switch selected
on.
Symbol Name ND Mode Remarks
ABC
R060
IRS (L)
IRS (C)
IRS (3)
IRS (R)
VD
LOC
DD
LOC DD
LOC VD
GPS
LOCGPS
December 01, 1999
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
10.40.16 D6-30151-425
Flight Instruments, Displays -
Navigation Displays
Weather radar returns
(R, A, G,M)
MAP, MAP
CTR, VOR,
APP
Displayed when WXR
switch selected on. Most
intense areas display in red,
lesser intensity in amber,
and lowest intensity green.
Turbulence displays in
magenta.
Selected map options
(B)
MAP, MAP
CTR
Indicates STA, WPT,
ARPT, and WXR switches
selected on.
Map source
annunciation (G)
MAP, MAP
CTR
Displays ND source if:
• CDU is selected
on related
Navigation
Source Select
switch
• both FMCs fail,
or
• a manually
selected FMC
fails
North up arrow (G) PLAN Indicates map background
is oriented and referenced
to true north.
Symbol Name ND Mode Remarks
STA
WPT
ARPT
WXR
CDU L, C, R
N
April 1, 2000
747 Operations Manual
Flight Instruments, Displays -
Navigation Displays
Copyright © The Boeing Company. See title page for details.
D6-30151-425 10.40.17
TCAS
Symbol Name ND Mode Remarks
TCAS resolution
advisory (RA),
relative altitude (R)
MAP, MAP
CTR, APP,
VOR
These symbols display only
when TFC switch selected
on. Refer to Chapter 15,
Warning Systems.
Proximate traffic is traffic
within 1,200 feet vertical
and 6 miles lateral of
present position.
Other traffic is greater than
1,200 feet vertical or 6
miles lateral from present
position.
Arrow indicates traffic
climbing or descending at a
rate greater than or equal to
500 fpm. At rates less than
500 fpm, arrow is not
displayed.
Number and associated
signs indicate altitude of
traffic in hundreds of feet
relative to the airplane.
Number is below the traffic
symbol when the traffic is
below, and above the traffic
symbol when the traffic is
above the airplane.
Absence of the number
implies altitude unknown.
TCAS traffic advisory
(TA), relative altitude
(A)
TCAS proximate
traffic, relative altitude
(W)
TCAS other traffic,
relative altitude (W)
TCAS no bearing
message (RA–R,
TA–A)
MAP, MAP
CTR, APP,
VOR
Message provides traffic
type, range in NM, altitude
and vertical direction.
TCAS traffic alert
message (RA–R,
TA–A)
All Displays when TCAS RA
or TA is active. TFC switch
does not have to be selected
on.
-03
+02
-05
+09
TA 8.9 -12
RA 5.3 +03
TRAFFIC
April 1, 2000
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
10.40.18 D6-30151-425
Flight Instruments, Displays -
Navigation Displays
TCAS off scale
message (RA–R,
TA–A)
MAP, MAP
CTR, APP,
VOR
Displays whenever RA or
TA traffic is outside the
traffic area covered by the
ND range. Displays only
when TFC switch selected
on.
TCAS mode (B)
MAP, MAP
CTR, APP,
VOR
Indicates ND TCAS
display is active; TFC
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