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Boeing 737-800 - Look-Ahead Terrain Messages (GPWS)

Boeing 737-800
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737 Flight Crew Operations Manual
Flight Instruments, Displays -
PFD/ND – Displays
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
10.11.52 D6-27370-866-EGP
4 Traffic (red or amber)
Displayed during a TA (amber) or RA (red) condition whether or not TFC is
selected on the EFIS control panel.
5 No–Bearing Messages (red or amber)
Textual description of TA (amber) or RA (red) traffic with no associated bearing.
Message provides traffic type, range in NM, altitude and a vertical motion arrow.
A maximum of two messages can be displayed simultaneously.
TFC selected on the EFIS control panel.
Look-Ahead Terrain Messages (GPWS)
1 Terrain Status Annunciation (amber)
TERR FAIL – Look-ahead terrain alerting and display have failed.
TERR POS – Look-ahead terrain alerting and display unavailable due to position
uncertainty.
TERR INHIBIT – GPWS terrain inhibit switch in TERR INHIBIT position.
2 Terrain Mode Annunciation (cyan)
TERR – Terrain display enabled (manual or automatic display).
TERR TEST – GPWS is operating in self-test mode.
TERR
TEST
TERR
TERR RANGE DISAGREE
MAP/TERR RANGE DISAGREE
TERR POS
TERR FAIL
TERR INHIBIT
1
3
2
September 15, 2016

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