PRIMUS
r
1000 Integrated Avionics System
A28--1146--112--00
4-95
Electronic Flight Instrument System (EFIS)
System Display Failure Annunciation
Failures (or invalid data) are shown on system displays by replacing
digital data with dashes and remove the analog scale pointers. These
can be seen when EFIS TEST button on the DC is pushed.
DISPLAY SYSTEM REVERSIONARY MODES
D
EFIS 1 (Pilot Normal) Failure
-- A failure of SG 1 in DGC 1 (or its
interface) shows itself in one of the following manners:
-
Red
X
on the pilot’s PFD
-
Red
X
on the pilot’s MFD
-
Red
X
on the EICAS
-
Red
X
on both the pilot’s PFD, MFD, and EICAS.
To recover from this failure, push the SG button. The NO. 2 SG (No.
2 DGC) now drives all five DUs.
D
EFIS 2 (Copilot Normal) Failure
-- A failure of the SG (in DGC 2)
displays a red
X
on the copilot’s PFD and the MFD.
To recover from this failure, push the SG on the copilot’s
reversionary control panel. When this is done, the No. 1 SG (No. 1
DGC) drives all five DUs.
DISPLAY CONTROLLER FAILURES
D
Pilot’s DC Fails
-- If the pilot’s DC fails, the SG driving the pilot’s
display automatically reverts to the display source selections given
below:
-
AHRS 1
-
MADC 1
-
NAV 1
-
RAD ALT 1
-
NO. 1 BEARING POINTER -- NAV 1
-
NO. 2 BEARING POINTER -- OFF
-
BARO -- Last selected setting
-
FULL HSI
-
MFD No. 1 menu inoperative.
