Originally Posted by Westhawk
Especially problematic is using a CDA when the MAP is located beyond the rwy threshold! Yeah, you could always just land somewhere else but why do that when you can get in safely simply by getting to MDA a little sooner?
Why would that be problematic? Surely you don't calculate your CDA to put you at the MDA at the MAP? Don't you calculate the CDA to put you on the PAPI? In which case, yes you get to the MDA before the MAP but unless you were planning on circling to land, if you aren't visual at the MDA (not the MAP) you just go-around.