737 Flight Crew Operations Manual
Flight Instruments, Displays -
Head-Up Display System,
Symbology
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
D6-27370-866-EGP 10.42.21
SYMBOL NAME MODE REMARKS
Right (#2) IRS
source
All All IRS information used or
displayed by the HUD is taken
from the right (#2) IRS.
Glideslope flag PRI in
flight,
AIII
approach,
IMC
ILS has failed.
Ground speed All Ground speed has no
computed data.
Lateral deviation
fault
PRI in
flight,
PRI
ground
ILS has failed.
Distance to next
waypoint
PRI in
flight,
AIII
approach,
IMC,
VMC
Distance to next waypoint has
no computed data.
Decision height
flag
PRI in
flight,
AIII
approach,
IMC
Decision height data has
failed.
Displayed below 1500 feet
radio altitude.
VOR failure flag PRI in
flight,
AIII
approach,
IMC
VOR has failed.
September 26, 2013