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PRIMARY DISPLAY SYSTEM -PFD NCD AND FAIL CONDITIONS -3
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.
NCD and Failed Airspeed Conditions
The chart shows the conditions for the airspeed indication.
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PRIMARY DISPLAY SYSTEM -PFD NCD AND FAIL CONDITIONS -4
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.
NCD and Failed Conditions
The charts shows the conditions for:
*
Altitude indication
*
Vertical speed indication
*
Heading indication.
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PRIMARY DISPLAY SYSTEM -NAVIGATION DISPLAY OVERVIEW
General
The navigation display (ND) has seven modes of operation. The modes are:
*
Expanded approach mode
*
Centered approach mode
*
Expanded VOR mode
*
Centered VOR mode
*
Expanded map mode
*
Centered map mode
*
Plan mode.
Flight planning, different flight phases, and flight changes require the use the various modes.
The plan mode has a north-up orientation.
The centered modes show 360 degrees of the compass rose. The expanded modes show 90 degrees of the compass rose.
Use the EFIS control panel (CP) to change the modes of operation.
Controls
Use the onside EFIS CP or the onside CDU to control the mode of operation.
Use the CTR push-button on the EFIS CP or the CTR selection on the CDU EFIS page to toggle the ND between the centered and the expanded display in the approach, VOR and MAP modes.
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PRIMARY DISPLAY SYSTEM -NAVIGATION DISPLAY OVERVIEW
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777 AIRCRAFT MAINTENANCE MANUAL
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PRIMARY DISPLAY SYSTEM -CENTERED APPROACH MODE
General
The centered approach mode display shows ILS course deviation, and navigation information over a full 360 degree compass rose. The centered approach mode is a heading-up display. The airplane symbol in the center of the display shows the airplane position along the flight path.
Display Data
The heading box at the upper center of the display shows digital heading in 1 degree increments. The compass rose also rotates to show airplane heading. The digital heading readout is green. MAG or TRU annunciation shows in green to indicate the heading reference.
A white track pointer on the compass rose shows track angle.
Selected course shows as a magenta pointer that rotates around the fixed airplane symbol. The selected course also shows digitally in the upper right corner of the display.
The localizer deviation indication contains a deviation bar on a dot scale. The localizer deviation indicator rotates around the airplane symbol with the pointer.
Glide slope deviation shows as a deviation bar on a vertical dot scale on the right side of the display.
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This data shows in the upper right corner for a tuned ILS station when the receiver gets a valid identifier from the ground station:
*
Frequency
*
Station (STA) identifier
*
DME distance.
With no valid identifier, the tuned frequency shows. Below the frequency/identifier field is the selected course. DME distance to a co-located DME station shows below the selected course when available.
The ILS radio source shows at the upper right, near the frequency or STA identifier.
VOR or ADF bearing pointers show on the compass rose. VOR and ADF pointers move clockwise. The VOR pointer movement equals the difference between the received omni-bearing signal and the airplane heading. VOR pointers are green and ADF pointers are cyan. The left pointer is thin and the right pointer is thick for both radios. ADF pointer movement from the airplane heading is the received ADF bearing.
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