Hi Don Coyote,
at which point the entry in your Ops manual will be clarified to state that you have to add 50' to all non precision approaches
Does this mean that sometime after 2011, we'll be adding 50 ft to all NPA minima (either DA or MDA) again? If so then I'm really confused.
A MDA is a minimum descent Altitude - i.e. don't go below.
A DA is the point I make the decision to continue or not, and since I have a ROD - I'll subsequently sink up to 50 feet below my DA. So what's the point of publishing a NPA DA then?