The selected runway heading vector is a magenta line that extends from the selected runway heading pointer to the compass rose.
Localizer Deviation Scale
The localizer deviation scale shows as four unfilled white dots. Each dot represents a deviation of 1 degree from the center of the localizer.
The scale rotates 360 degrees around the center of the airplane symbol and is always perpendicular to the selected runway heading pointer.
Localizer Deviation Bar
The localizer deviation bar shows airplane deviation from the center of the localizer. The deviation bar shows as a filled magenta bar if deviation is less than
2.5 dots. If deviation is more than 2.5 dots the bar shows as an unfilled magenta bar.
The localizer deviation bar is always positioned perendicular to the scale.
Glideslope Deviation Scale
The glideslope deviation scale shows on the right side of the ND. A centerline and four unfilled white dots displayed vertically represent degrees of deviation from the glideslope. Each white dot represents .35 degrees of deviation.
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CDS -- ND - EXPANDED APPROACH Glideslope Deviation Pointer
A magenta diamond symbol moves vertically along the glideslope deviation scale to represent deviation of the airplane from the glideslope. The magenta diamond is filled when deviation is 2.5 dots or less. If deviation is more than 2.5 dots, the magenta diamond is unfilled.
The glideslope pointer is removed when the airplane performs a back course approach.
ILS Source
ILS source shows which ILS receiver is providing data to the ND. This is usually ILS 1 for the captain's ND and ILS 2 for the first officer's ND.
ILS Frequency
The ILS frequency or station identifier shows in the upper right corner of the ND display.
Additional Approach Mode Display Data
Ground speed, true airspeed, heading, track, selected heading and the compass rose arch are full time displays in the approach mode.
Wind Data shows on the approach mode when airplane ground speed is more than 100 knots.
737-600/700/800/900 TRAINING MANUAL
Bearing pointers to tuned VOR or ADF stations show on the compass rose arch when selected to show on the EFIS control panel. Bearing pointer identification and DME distance will show in the lower right and left of the display.
These systems show data and warning messages on the expanded approach display:
-Traffic Alert and Collision Avoidance System
(TCAS)
-Enhanced Ground Proximity Warning System (EGPWS)
-Weather Radar and Predictive Windshear.
- 410 -
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737-600/700/800/900 TRAINING MANUAL
GROUND SPEED
WIND DATA
HEADING POINTER
SELECTED RUNWAY
HEADING VECTOR
SELECTED RUNWAY
HEADING POINTER
LOCALIZER DEVIATION SCALE
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TRUE AIRSPEED HEADING ILS SOURCE
ILS FREQUENCY
SELECTED RUNWAY HEADING
DME DISTANCE
SELECTED HEADING
VOR 2 BEARING POINTER
TRACK LINE
GLIDESLOPE DEVIATION SCALE AND POINTER
VOR 2 FREQUENCY/IDENT DME DISTANCE
LOCALIZER DEVIATION BAR CDS - ND - EXPANDED APPROACH
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737-600/700/800/900 TRAINING MANUAL CDS -- ND - CENTERED APPROACH THIS PAGE INTENTIONALLY LEFT BLANK
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CDS -- ND - CENTERED APPROACH General
To show the approach display, select the APP mode on the EFIS control panel. Push the CTR button on the EFIS control panel If the expanded approach display shows. This will change the display to the centered approach display.
The approach display shows localizer and glideslope deviation to a tuned ILS station.
Airplane Symbol
The airplane symbol appears at the center of the Centered Approach mode. The airplane symbol is white. The airplane symbol does not move. Other pointers and displays move with respect to the airplane symbol.
Selected Runway Heading and Pointer
Selected Runway Heading shows in the upper right of display. The numerical value represents degrees of the compass rose. The selected runway heading value comes from the onside selected course value on the mode control panel.
The selected runway heading pointer shows as two white bars with pointed ends centered around the airplane symbol. The bar pointing to the selected runway heading shows a cross bar near its base for identification.
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