A320 Final App Query
Hi all, hope you are all well.
i have a query about final app as I’m slightly confused by the FCOM / FCTM engagement conditions.
one of the engagement conditions is +250ft above the final descent point.
does this mean if the platform is 4k, it will only engage at 4250ft as a minimum
OR
does the 3 degree path (assuming it’s 3 deg in this case) work backwards from the FDP so you can in fact have final app engaged earlier.
the reason why I ask is some skippers brief that they’d like to be level at the platform alt which means from what I’ve seen FINAL APP has engaged at the FDP exactly, where as I’ve also seen it armed during a descent as long as it has been the TO waypoint..
interested in peoples thoughts.. is it really necessary to be level… before arming that is…?
thanks guys hope you all have a nice weekend.