Originally Posted by
saviboy
Hello everyone...
I just watched a video/briefing I found on the Airbus WIN Application done by captain Savary and published in January 2019.
In the video, captain Savary says that the FINAL APP mode doesn’t guarantee altitude constraint compliance. (Prior to a leg that includes an FPA) Therefore the APPR push button should not be pressed until the TO waypoint is a fix with a coded FPA . (EG: 3 degrees)
I never knew about that restriction and looking at the FCOM, I can’t find such a restriction..
can somebody bring clarification?
thank you
FCOM says the approach should be armed once the TO waypoint is the final descend point. I had been thinking already why but the above would make sense, althougt i do not see any explanation in the FCOM regarding it. The relevant part of the procedure:
APPR pb on FCU ............................................................ ......................................................PRESS
Press the APPR pb when all of the following conditions are satisfied: ‐ The aircraft is cleared for approach ‐ TO waypoint is the Final Descent Point.
APP NAV......................................................... .................................CHECK ARMED or ENGAGED FINAL....................................................... ............................................................ .... CHECK ARMED