Boeing 737-800 - Page 1013

737 Flight Crew Operations Manual
Flight Instruments, Displays -
Head-Up Display System,
Symbology
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D6-27370-866-EGP 10.42.15
SYMBOL NAME MODE REMARKS
Runway edge
lines
AIII
approach
Displayed between 300 and 60
feet radio altitude. The lines
are scaled to a width of 200
feet and a length of 8000 feet.
Tic marks are displayed at the
touchdown aimpoint
representing 1050 feet from
the runway threshold.
IDLE message AIII
approach
Displayed below the radio
altitude when flare guidance
commands a thrust reduction
to idle for touchdown.
Message is displayed between
25 to 5 feet radio altitude,
depending on airspeed.
ALIGN HUD
message
IMC,
VMC
Indicates the combiner is not
properly aligned with the
OHU.
HUD system
mode
AIII
approach,
AIII
rollout,
IMC,
VMC
Indicates current HUD system
mode.
The PRI mode is not indicated
as it is uniquely identifiable by
the airspeed and altitude tapes.
AIII approach
status
PRI in
flight
A flashing “AIII” indicates
availability of AIII approach
mode.
AIII
approach
Indicates AIII mode selection
once all AIII approach
requirements have been
satisfied.
If AIII capability is lost, the
“NO AIII” status message is
displayed.
IDLE
ALIGN HUD
IMC
or
or
VMC
AIII
AIII
AIII
NO AIII
or
September 26, 2013