Seven years as a flight instructor and I experienced my first failure as the recommending instructor. I never boasted about never having a student fail. Now I feel I can. I discretely told my follow instructors about this being my first today in our meeting. Makes me feel human again and a big weight off my shoulders. Hopefully this isn't a trend to come. Shouldn't be. The student today missed a step down fix on a RNAV and went to MDA 0.5 too soon. Easy fix. No pun intended.