Originally Posted by
Too Few Stripes
The question of knowing when the FMC is in on-approach logic is still open though?
we’re getting bogged down on what RNP value is displayed. The displayed RNP value is not an indication of being in on-approach logic, it is an indication of the current RNP as programmed in the FMC database and dependent on the approach type and where you currently are on that approach.
You cannot
SEE when FMC is in on-approach,
afaik.
You
CAN see when FMC uses an RNP which is only used during approach, such as 0.3 (which is not used enroute...