I A P 2 0 2 3 . 0 0 1 - A F M / I R I S T E X A N I I P A G E | 94
FOR SIMULATION USE ONLY – NOT A TRAINING AID
Magenta is used to identify the reference values and carets that can be
selected by the pilot on the various indicators: airspeed indicator, barometric
altitude, and compass heading; plus identifying the current navigation
information having the FMS as active source (current flight plan leg and
waypoint, lateral deviation indicator [diamond symbol], course deviation
indicator - scale and messages [ENR, TRM, APP, OFS], and navigation source
information).
White is used to identify flying over an inner marker beacon. White is also
used to portray course deviation indications when non-FMS course source is
used, navigation source information when non-FMS course source is in use,
and inactive flight plan legs and waypoints.
NORMAL OPERATION
White is a default colour. Every other indication or parameter that does not pertain
to the colour code described in the previous paragraph is displayed in white.
White and green are used to indicate the normal operational range (e.g., engine
indicator dials) and to identify the status and condition messages on the EICAS
display.
Reversion Mode
The integrated avionics system operates in reversion mode upon detection of an
IAC or PEN failure. When operating in reversion mode, the indications of integrated
avionics system failures are shown on the EICAS screen and STS/BIT status screen.
When operating in the basic reversion mode, the IAC forces PFD and EICAS screens
to always be displayed. This rule applies to both the FWD and AFT stations. The
integrated avionics system provides the following level of automatic MFD screen
reversion upon detection of the following MFD failures:
1. If a single MFD fails, the integrated avionics system ensures that the PFD and
EICAS screens are always presented. In this scenario, the following rules apply:
a. PFD screen reversion defaults from centre, then left, then right. The
reversion of the PFD screen to another MFD will not cause the EICAS display
to move.
b. EICAS screen reversion defaults from right, then left, then centre. The
reversion of the EICAS screen to another MFD will not cause the PFD display
to move.
c. No screen change required if failed MFD does not contain PFD or EICAS.
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