FMS DEGRADED OPERATION
6 OTHER DEGRADED OPERATIONS
NAV ACCUR DOWNGRAD
Accuracy can be monitored on PROG
page.
When EPE (ESTIMATED value)
becomes above the REQUIRED value,
NAV ACCURACY DOWNGRAD message
(white) is displayed on scratchpad.
On ND message is displayed in amber.
These messages can be cleared by
pilot.
PROG page ...................Select
Check accuracy.
Consider adequate navigation
procedures.
When accuracy improves to the
required value NAV ACCURACY
UPGRAD message is displayed on
MCDUs and NDs.
DESCENT THV001
CRZ OPT REC MAX
----- ----- FL398
<REPORT VDEV=- 350 FT
UPDATE AT
*[ ]
BRG /DIST
302° /23.5 TO EGLL27R
PREDICTIVE
<GPS
REQUIRED ACCUR ESTIMATED
1.0NM LOW 1.28NM
NAV ACCURACY DOWNGRAD
DESCENT THV001
CRZ OPT REC MAX
----- ----- FL398
<REPORT VDEV=- 350 FT
UPDATE AT
*[ ]
BRG /DIST
302° /23.5 TO EGLL27R
PREDICTIVE
<GPS
REQUIRED ACCUR ESTIMATED
1.0NM HIGH 0.92NM
NAV ACCURACY UPGRAD
NAV ACCURACY DOWNGRAD
NAV ACCURACY UPGRAD
J43126AA 00
© THALES AVIONICS S.A.
AIRBUS A318/319/320/321
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