FMS DEGRADED OPERATION
FMGC RESETS or FAILURES 23
INDEPENDENT mode
This may occur after several attempts of resynchronization or when
data base is loaded in the FMSs.
The two FMSs are healthy but in disagreement on some criteria, or
cannot communicate and synchronize. Each FMGC operates
independently.
INDICATIONS IN THE COCKPIT
MCDUs:
−
INDEPENDENT OPERATION scratchpad message (amber) is
displayed.
−
The front panel annunciator IND is illuminated on the two MCDUs.
CLIMB
THV001
CRZ OPT REC MAX
FL360
FL360
FL384
<REPORT
UPDATE AT
*
[ ]
BRG /DIST
---° /----.-
TO
[ ]
PREDICTIVE
<GPS
GPS PRIMARY
REQUIRED ACCUR ESTIMATED
1.0
NM
HIGH
0.08NM
INDEPENDENT OPERATION
FM1
IND
RDY
FM2
FM1
IND
RDY
FM2
FROM THV001
{}
UTC SPD/ALT
T-P
0523 / FL159
BRG344° 34
(T/C)
0827 .79/ FL360
TRK344° 49
FOUCO
0834 300/ "
UN874
48
ADABI
0839 " / "
UN874
30
NM
BOKNO
0843 " / "
DEST UTC DIST EFOB
EGLL27R
0929 471 4.1
INDEPENDENT OPERATION
$
−
On POSITION MONITOR page the opposite FMGC position is not
displayed. Discrepancies between the two FMGCs position may exist.
POSITION MONITOR
FMGC1
5116.0N/00007.9E
3IRS/GPS
FMGC2
----.--/-----.--
3IRS/GPS
GPIRS
5116.7N/00007.1E
MIX IRS
5117.6N/00007.8E
IRS1 IRS2 IRS3
NAV 0.9 NAV 1.2 NAV 1.6
SEL
<FREEZE
NAVAIDS>
POSITION MONITOR
FMGC1
----.--/-----.--
FMGC2
5116.6N/00007.0E
3IRS/GPS
GPIRS
5116.7N/00007.1E
MIX IRS
5117.6N/00007.8E
IRS1 IRS2 IRS3
NAV 0.8 NAV 1.0 NAV 1.4
SEL
<FREEZE
NAVAIDS>
−
On RAD NAV page navaids tuned on the opposite MCDU are not
displayed. Corresponding fields are blank.
AIRBUS A318/319/320/321
© THALES AVIONICS S.A.
J43126AA 00
Summary of Contents for FMGS
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