A-3Twenty
PRO-NOR-SOP-18-C P9/20
MANAGEMENT OF DEGRADED NAVIGATION
The approach may be continued in case of single failure of:
‐ GPS (MMR)
‐ FMGS
‐ EFIS DU
‐ MCDU
‐ AP
Discontinue the approach in the following cases:
‐ FINAL APP does not engage
‐ GPS PRIMARY LOST on both NDs
‐ Dual NAV ACCUR DOWNGRAD
‐ FM/GPS POSITION DISAGREE
‐ FMS1/FMS2 POS DIFF
‐ Dual loss of FMGC or dual loss of FINAL APP mode
‐ Dual AP failure if the RNP < 0.3 nm
‐ Loss of GPWS TERRAIN if obstacles or TERRAIN inconsistencies
‐ NAV ALT DISCREPANCY