Well, flying a scheduled service to ZMUB the only thing I can say it's not in the data base. What is the data base is the way point FN14 where the descent will be commenced. It's a substitute of FAF in absence of such. Overlay to me is when I can just press the approach button and the a/c flies both LNAV/VNAV following the published NPA profile, NOT the case here. The approach is flown using raw data aided by the FN14 to identify the descent point.
