Dragging this lurching vessel back to a CDA - do we have a definitive, logical explanation from 'them's what regulates' as to whether or not the 'old' MDA
is to be re-calculated (raised?) to derive a DA and if so by whom? Is it now accepted that it
was an unnecessary restriction to forbid descent below such? Do the readers here consider the matter has been adequately addressed in terms of ensuring that the change is clearly presented and everyone understands? Any ATC procedure folk to comment?
I hesitate to mention 'D&D'
but obviously there is no need for any recalculation of MDA there, only the mandated increase under EU-OPS in minimum RVR for such. This leads to further confusion - can a D&D now use the new DA? Will this DA be 'safe' for terrain clearance when, unless there are further restrictions, strictly speaking there would be nothing stopping a death-defying D&D 'dive' from FAF straight down to the 'new' DA several miles out? Will we have to retain 2 sets of figures on Jepps etc?