737 Flight Crew Operations Manual
Warning Systems -
Controls and Indicators
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
15.10.10 D6-27370-866-EGP
YK995 - YQ456
8 Runway Inoperative (INOP) Light
Illuminated (amber) – One of the following occurs:
• RAAS failure
• GPS position accuracy is inadequate
• the airport is not in the GPWS database
• the airport is not in the RAAS runway database
• Ground Proximity Runway Inhibit Switch unreasonable: Airspeed 250
knots or greater for more than 60 seconds with Ground Proximity
Runway Inhibit Switch in INHIBIT position.
GPWS Terrain Display Select Switch
1 Terrain (TERR) Display Select Switch
Push –
• shows terrain data in expanded MAP, center MAP, expanded VOR, and
expanded APP modes
• arms terrain data in PLN, center VOR, and center APP modes
• deselects weather radar display regardless of mode selector position
• second push deselects terrain display.
September 15, 2016
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