It begins to sound as if the 'D' in MDA is slowly changing from 'Descent' to 'Decision' which would be fine. Until then, in my book, a
Minimum is just that. Has this been promulgated? Has the means of calculating 'M
Decision Altitude' been adjusted? It still seems to me that if no margin is added to 'MDA' then terrain separation can easily be degraded. EUOPS (as usual, a la JAROPS) offers NO useful guidance that I can find. 3 UK operators in my flying time have always added 50' for a 737, including BA
I well recall the many ear-bashings in the sim for going a smidge below MDA on a s/engine g/a
Any ATC folk around who can cast a light?