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* Heading pointer
* Track line
* Flight path vector
* Selected heading
* Mag/Tru annunciation
* Vertical speed scale.
The ND shows this data:
* Heading or track
* Magnetic or true annunciation
* Track/heading scale
* Selected heading
* Ground speed
* Track line.
In flight, the ND also shows this data:
* True airspeed
* Wind speed
* Wind direction.
Display Source Priority
Track and ground speed data comes from the FMC and the
ADIRS. The data that shows on the CDS is normally FMC track
and FMC ground speed. If the FMC fails, the CDS shows ADIRS
track and ground speed.
True Airspeed and Wind Speed and Direction
True airspeed does not show on the ND until TAS is more than
100 kts. The normal display when TAS is 100 kts or less is three
dashes. This is the NCD indication.
Wind speed and direction does not show until TAS is more than
100 kts. When TAS is 100 kts or less, wind speed and direction is
blank.
Flight Path Vector
The flight path vector (FPV) shows on the PFD when you make a
selection on the EFIS control panel. The flight path vector
symbol shows the motion of the airplane relative to the horizon
and the airplane heading. The FPV moves perpendicular to the
horizon to show flight path angle and moves parallel to the
horizon to show drift angle. On the ground, the flight path vector
is centered on the horizon line.
ADIRS - PFD AND ND INDICATIONS AFTER ALIGNMENT
EFFECTIVITY
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Heading or Track Up Display
The ND reference is airplane heading in the VOR and APP
modes. The ND reference is airplane track in the MAP and Plan
modes.
ADIRS - PFD AND ND INDICATIONS AFTER ALIGNMENT
EFFECTIVITY
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ADIRS - PFD AND ND INDICATIONS AFTER ALIGNMENT
ADIRS - PFD AND ND INDICATIONS AFTER ALIGNMENT
EFFECTIVITY
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General
Failure flags show on the PFD and ND for invalid inertial
reference (IR) or invalid air data reference (ADR) conditions.
The PFD shows these flags for invalid ADIRS data:
* ATT for invalid attitude data
* ALT for invalid baro altitude data
* FPV for invalid flight path vector data
* HDG for invalid heading data
* SPD for invalid airspeed data
* VERT for invalid vertical speed data.
The ND shows the HDG flag for invalid heading data in the VOR
and APP modes. The TRK flag will show in the MAP mode or
PLAN mode.
Attitude Flag
When attitude data from the ADIRU is invalid, the PFD shows the
ATT flag. The PFD does not show these values:
* Horizon line
* Sky/ground shading
* Bank pointer
* Slip/skid indicator
* Pitch scale.
Altitude Flag
The ALT flag shows on the PFD for invalid altitude data from the
ADIRU. The PFD does not show the altitude tape.
Flight Path Vector Flag
The FPV flag will show on the PFD when attitude data from the
ADIRU is invalid. The PFD does not show the flight path vector.
Heading/Track Flag
The HDG flag shows on the PFD, and the HDG or TRK flag
shows on the ND when the ADIRU heading data is invalid.
Heading and track data do not show.
Speed Flag
The SPD flag shows on the PFD when ADIRS airspeed data is
invalid. The Speed tape does not show on the PFD.
Vertical Speed Flag
The VERT flag shows on the PFD when ADIRS vertical speed
data is invalid. The vertical speed scale and pointer do not show
on the PFD.
ADIRS - PFD AND ND INVALID ADIRS DATA
EFFECTIVITY
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ADIRS - PFD AND ND INVALID ADIRS DATA
ADIRS - PFD AND ND INVALID ADIRS DATA
EFFECTIVITY
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General
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