737 Flight Crew Operations Manual
Flight Instruments, Displays -
PFD/ND – Primary Flight Display
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
10.31.2 D6-27370-866-EGP
A pointer indicates bank angle in increments of 10, 20, and 30 degrees. Single
marks indicate 45 and 60 degrees of bank. A small rectangle under the bank angle
pointer indicates slip and skid conditions. Bank angle is also represented by the
attitude of the airplane symbol against the horizon line and pitch scale.
A pitch limit indication is displayed at all times when the flaps are not up, or when
flaps are up and airspeed approaches stick shaker activation for existing flight
conditions.
Steering Indications
The flight director is displayed when the related flight director switch is on. Pitch
and roll commands are displayed independently.
The Flight Path Vector (FPV) symbol represents airplane flight path angle
vertically and drift angle laterally. The flight path vector is displayed on the PFD
when the EFIS control panel FPV switch is selected on. The FPV shows the Flight
Path Angle (FPA) above or below the horizon line and drift angle left or right of
the pitch scale's center. The FPA uses inertial and barometric altitude inputs. The
vertical FPA is unreliable with unreliable primary altitude displays.
The FPV symbol is displayed in two brightness levels. The FPV symbol is
displayed dim when either the flight director or a TCAS resolution advisory is
displayed. The FPV symbol is displayed bright when the flight director is off and
there is no TCAS resolution advisory displayed.
Instrument Landing System Indications
ILS glideslope and localizer deviation, frequency/identification, DME, course,
and marker beacon indications are provided.
The approach reference information appears above and to the left of the attitude
display. The ILS station identification or frequency, course, and (if available)
DME are displayed.
The marker beacon indication (OM – outer marker, IM – inner marker, or MM –
middle marker) is displayed in the upper right corner of the attitude display area.
The glideslope pointer and scale appear on the right side of the attitude indication
when a valid signal is received. At low radio altitudes with autopilot engaged the
scale turns amber and the pointer flashes to indicate an excessive glideslope
deviation. The pointer is not displayed when the glideslope signal is unusable or
when the track and the front course on the mode control panel differ by more than
90 degrees (backcourse).
September 30, 2011
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