(W, A) should be path and speed stable on approach. Gates are placed on the 3 Degree Reference Line or FMC Approach Glidepath Angle Line: . at 1000 feet above field elevation(W). . at 500 feet above field elevation(A). Decision gates that are below the missed approach waypoint altitude will not be displayed.
Flight path vector (W) Fixed length line indicates current flight path angle and rotates about the point of the triangle. Angle of the line is dependent on the vertical speed and ground speed of the airplane.
MCP selected Dashed line indicates the selected vertical speed
vertical speed as a target angle when the MCP V/S mode is
vector (M) selected. Extends to the edge of the background display and rotates about the point of the triangle.
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Flight Instruments, Displays -PFD/ND Navigation Displays 737 Flight Crew Operations Manual
SYMBOL NAME REMARKS
Range to target speed dot (G) Indicates where the airplane will achieve the FMC or MCP target speed. If the airplane is within 5 knots of the target speed the dot will be blanked. If the airplane increases 10 knots or more faster than the target speed the dot will reappear. Displayed at the end of the Flight Path Vector as an unfilled dot if the target speed will not be achieved within the vector length.
NOLLA 2500 Waypoint altitude constraint: active (M), inactive (W) At Altitude example.
NOLLA 2500A Waypoint altitude constraint: active (M), inactive (W) At or Above Altitude example.
NOLLA 2500B Waypoint altitude constraint: active (M), inactive (W) At or Below Altitude example.
FL200B FL180A NOLLA Waypoint altitude constraint: active (M), inactive (W) Block Altitude example.
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June 1, 2005 10.41.17
Flight Instruments, Displays -PFD/ND Navigation Displays
Look-Ahead Terrain
SYMBOL NAME MODE REMARKS
Terrain display (R, A, G, M) MAP, MAP CTR, VOR, APP Displays terrain data from the GPWS terrain data base. Color and density vary based on terrain height vs. airplane altitude. Refer to Chapter 15, Warning Systems.
YD651 - YD655
Terrain obstacle (R, A, G) MAP, MAP CTR, VOR, APP Obstacles are displayed from the GPWS data base and use the same display criteria as the terrain display.
OBSTACLE Obstacle annunciation (R, A) All Obstacle caution alert active (A), obstacle warning alert active (R).
YD651 - YD655
TERR 060 030 Terrain mode annunciation (C) Terrain elevation (R,A,G) MAP, MAP CTR, VOR, APP Terrain display enabled (manual or automatic display). Terrain elevation displayed in hundreds of feet showing highest
and lowest displayed terrain.
Colors correspond to terrain
display.
Terrain elevation not displayed
when terrain data unavailable.
YA613 - YC413, YK101 - YK104
TERR Terrain mode annunciation (C) MAP, MAP CTR, VOR, APP Terrain display enabled (manual or automatic display).
TERR TEST Terrain test mode annunciation (C) All GPWS operating in self-test mode.
TERRAIN Terrain annunciation (R, A) All Look-ahead terrain caution alert active (A), look-ahead terrain warning alert active (R).
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Flight Instruments, Displays -PFD/ND Navigation Displays 737 Flight Crew Operations Manual
SYMBOL NAME MODE REMARKS
TERR FAIL Terrain status annunciations (A) All Look-ahead terrain alerting and display have failed.
TERR POS Terrain status annunciations (A) All Look-ahead terrain alerting and display unavailable due to position uncertainty.
TERR INHIBIT Terrain status annunciations (A) All GPWS terrain inhibit switch in TERR INHIBIT position.
TERR RANGE DISAGREE Terrain range status annunciations (A) MAP, MAP CTR, VOR, APP Terrain output range disagrees with selected EFIS control panel range.
MAP/TERRRANGE DISAGREE Terrain range status annunciations (A) MAP, MAP CTR Terrain output range and map display output range disagree with selected EFIS control panel range.
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Flight Instruments, Displays -PFD/ND Navigation Displays 737 Flight Crew Operations Manual
Predictive Windshear
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