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PRIMARY DISPLAY SYSTEM -EXPANDED VOR MODE

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PRIMARY DISPLAY SYSTEM -VOR MODE FAILURE FLAGS

General Failures of input sources cause data to go away from the display and failure flags to show.  ADFL or ADFR shows when the left or right ADF input fails to the ND. To see the flag, put the applicable switch on the EFIS control panel in the ADF position. 
All the flags are amber in color. 
The captain’s and first officer’s NDs operate independently. 
Failure Flags 
The heading (HDG) flag shows when the input to the applicable ND fails 
DMEL or DMER (top corner information) flag shows when the DME co-located with the left or right VOR input fails to the ND 
VORL or VORR (mode information) flag shows when the left or right VOR input fails to the ND 
DMEL or DMER (bottom corner information) shows when the DME co-located with the left or right VOR input fails to the ND. To see the flag, put the applicable VOR switch on the EFIS CP in the VOR position. 
VORL or VORR (bottom corner information) shows when the left or right VOR input fails to the ND. To see the flag, put the applicable switch on the EFIS control panel in the VOR position. 

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PRIMARY DISPLAY SYSTEM -VOR MODE FAILURE FLAGS

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PRIMARY DISPLAY SYSTEM -VOR MODE NCD AND FAIL CONDITIONS

General
The display function in the AIMS cabinets evaluates inputs from the airplane systems.
A no computed data (NCD) status causes information on the display to go away.
A fail status causes information on the display to go away and a fail flag to show.
VOR Mode NCD and Failure Conditions
The chart shows the NCD and fail conditions for the VOR mode and for the VOR, DME, and ADF data available through the VOR/ADF switches on the EFIS CPs.
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PRIMARY DISPLAY SYSTEM -VOR MODE NCD AND FAIL CONDITIONS

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777 AIRCRAFT MAINTENANCE MANUAL

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PRIMARY DISPLAY SYSTEM -CENTERED MAP MODE

General
The centered map mode shows the airplane flight plan on a full 360 degree display. The centered map mode has a track up reference. The point of the airplane symbol (a triangle) is the present position of the airplane.
The same basic data shows in both the centered and the expanded map modes.
Display Data
The current track value shows digitally in the readout box. The compass rose rotates and the readout changes in one degree increments. TRK shows on the left and MAG or TRU shows on the right. A track line shows from the bottom of the display through the tip of the airplane symbol to the readout box. Current heading shows as a triangular pointer on the outer edge of the compass rose.
Selected heading shows as a magenta (M) cursor (bow tie) on the outer edge of the compass rose. The selected heading cursor and the heading cursor (W) fit together when their values are equal. A dotted magenta vector shows full time except when the AFDS roll mode is LOC, ROLLOUT or LNAV. For these modes, the vector shows for ten seconds after selected heading changes, then goes away. Selected track shows as a magenta cursor on the inner edge of the compass rose. The vector is the same as the selected heading vector.
EFFECTIVITY
BEJ ALL

VOR/ADF bearing information is the same as approach and VOR modes.
VOR/ADF selection is the same as approach and VOR modes.
Ground speed, wind data, and true airspeed are the same as approach and VOR modes.
A curved position trend vector (W) shows from the tip of the airplane symbol. The vector shows the airplanes predicted position in 30, 60, or 90 second intervals. The map range controls the number of segments. The tip of each segment shows the future airplane position in 30 seconds. The ground speed determines the length of the line. Cross track acceleration from the ADIRU controls the curve.
This data shows in the upper right corner:
*
Active waypoint identifier

*
Estimated time of arrival (ETA) to the waypoint

*
Distance to the waypoint.

　
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