Silvertate:
As a matter of interest, does the A330 give adequate error warnings for this type of approach?
Dual GNSS
Dual FMS
FMS most provide continuity, integrity, accuracy, and
alerting.
Auto-flight
Auto-throttles
This is the case with all airframes certified by the O.E.M. for RNP AR. Additionally, for RNP of less than 0.3, and/or missed approach of less than 1.0, there must be at least one IRU or its equivalent.