737 Flight Crew Operations Manual
Flight Instruments, Displays -
PFD/ND – Primary Flight Display
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10.31.4 D6-27370-866-EGP
A landing altitude reference bar is displayed along the inner edge of the altitude
indication. The reference bar indicates the height above touchdown. A white bar
is displayed from 1000 to 500 feet above landing altitude. An amber bar is
displayed from 500 feet to the landing altitude.
A landing altitude indication is displayed as a crosshatched area and indicates:
• the FMC landing altitude for destination runway or airport, or
• the landing altitude for departure runway or airport until 400 NM from
departure or one–half the distance to destination, whichever occurs first.
The current barometric reference is displayed below the altitude tape in either
inches of mercury or hectopascals as selected on the EFIS control panel. A
preselected barometric reference can be displayed when STD is displayed.
Vertical Speed
Vertical speed is displayed to the right of the altitude tape with a tape and pointer.
Vertical speed is digitally displayed above or below the vertical speed display
when vertical speed is greater than 400 feet per minute. It is displayed above with
positive vertical speed and below with negative vertical speed. The selected
vertical speed bug shows the selected vertical speed when in the AFDS vertical
speed (V/S) pitch mode.
Heading/Track Indications
Heading/track information is displayed in the bottom section of the PFD on a
section of the compass rose. Current heading is displayed under a pointer at the
top of the compass rose. The MCP selected heading is displayed as a bug on the
outside of the compass rose and digitally in the left half of the compass rose.
The current heading/track reference (MAG/TRU) is shown in the right half of the
compass rose. A line drawn perpendicular to the edge of the compass rose from
the invisible center depicts the current airplane track.
A heading scale is added to the horizon line when the flight path vector is selected
on the EFIS control panel, the current bank angle is less than 50 degrees and the
absolute pitch angle is less than 20 degrees. The heading scale includes 5 and 10
degree indices with numeric indications aligned with the 10 degree indices. A
magenta heading bug is also displayed that represents the MCP selected heading
value. For bank angles 50 degrees or greater, the scale is removed to avoid
confusion between heading ticks and pitch ticks in the event of unusual attitude
recovery.
Traffic Alert and Collision Avoidance (TCAS) Indications
TCAS resolution advisories are displayed in the attitude indication and vertical
speed indication areas.
September 26, 2013
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